Cast On Critical Strike Support

Trigger, Support, Spell
Icon: &
Level: (1-20)Requires Level 38Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Attack Critical Strike Chance
Supported Skills have 1% increased Spell Critical Strike ChanceSupported Skills deal 1% more Attack DamageSupported Skills have 0.5% increased Attack SpeedSupported Attacks will Trigger a Supported Spell when you Crit an Enemy
Supported Skills deal (20-29)% more Spell Damage
You cannot Cast Supported Triggerable Spells directlyThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.

Area level: 38

Normal

1x Orb of Alchemy

1x Scroll Fragment
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemCastOnCrit

Cast on Critical Strike (commonly referred to as CoC) is a support gem that causes linked spells to trigger when the player scores a critical strike with the attack skill it is linked to.

Skill functions and interactions

There is an internal cooldown to how fast spells can be triggered, as of patch 3.5 the cooldown is 150ms, or roughly 6 casts per second given optimal conditions.

In case of multiple spells linked to one attack skill this support will alternate the spell being triggered.

Trigger order: Trigger gems and their linked skills are cast in a certain order that depends both on which item it is equipped on and which socket the skills are in. If there are trigger gems in each equipped item, the order of operation will be:

Main hand ⇒ Amulet ⇒ Helm ⇒ Off hand ⇒ Body armour ⇒ Gloves ⇒ Boots

The linked sockets also follow a specific order, as follows:

Cooldown Time: When a supported spell is successfully cast, it and all supported spells of the same name are put on cooldown for 150 milliseconds. This means that a given spell can only trigger once per critical strike, and reduces the effect of linking multiple copies of the same spell to this support (especially when it is at a higher gem level). It is important to note that this cooldown does not apply to the gem as whole; you can trigger multiple spells within the 150 millisecond cooldown time as long as they are different.

Gem level progression

Level				Cost and Reservation Multiplier	Critical Strike Chance	Damage Effectiveness	Attack Damage	Attack Speed	More Spell Damage	Exp.	Total Exp.
1	38	40	27	0%	0%	0%	0%	0%	20%	0	0
2	40	41	29	0%	0%	0%	0%	0%	21%	388734	388734
3	42	43	30	0%	0%	0%	0%	0%	22%	477437	866171
4	44	45	31	0%	0%	0%	0%	0%	23%	583786	1449957
5	46	47	33	0%	0%	0%	0%	0%	24%	710359	2160316
6	48	49	34	0%	0%	0%	0%	0%	25%	1355511	3515827
7	50	51	35	0%	0%	0%	0%	0%	26%	1138877	4654704
8	52	53	37	0%	0%	0%	0%	0%	27%	1368233	6022937
9	54	55	38	0%	0%	0%	0%	0%	28%	1638338	7661275
10	56	57	39	0%	0%	0%	0%	0%	29%	1956648	9617923
11	58	58	41	0%	0%	0%	0%	0%	30%	3655184	13273107
12	60	60	42	0%	0%	0%	0%	0%	31%	3017327	16290434
13	62	62	43	0%	0%	0%	0%	0%	32%	3576232	19866666
14	64	64	44	0%	0%	0%	0%	0%	33%	4231667	24098333
15	65	65	45	0%	0%	0%	0%	0%	34%	2395078	26493411
16	66	66	46	0%	0%	0%	0%	0%	35%	8421063	34914474
17	67	67	46	0%	0%	0%	0%	0%	36%	16159983	51074457
18	68	68	47	0%	0%	0%	0%	0%	37%	41170367	92244824
19	69	69	48	0%	0%	0%	0%	0%	38%	86794448	179039272
20	70	70	48	0%	0%	0%	0%	0%	39%	157405063	336444335
21	72	72	50	0%	0%	0%	0%	0%	40%	-336444335	0
22	74	0	0	0%	0%	0%	0%	0%	41%	0	0
23	76	0	0	0%	0%	0%	0%	0%	42%	0	0
24	78	0	0	0%	0%	0%	0%	0%	43%	0	0
25	80	0	0	0%	0%	0%	0%	0%	44%	0	0
26	82	0	0	0%	0%	0%	0%	0%	45%	0	0
27	84	0	0	0%	0%	0%	0%	0%	46%	0	0
28	86	0	0	0%	0%	0%	0%	0%	47%	0	0
29	88	0	0	0%	0%	0%	0%	0%	48%	0	0
30	90	0	0	0%	0%	0%	0%	0%	49%	0	0
31	91	0	0	0%	0%	0%	0%	0%	49%	0	0
32	92	0	0	0%	0%	0%	0%	0%	50%	0	0
33	93	0	0	0%	0%	0%	0%	0%	50%	0	0
34	94	0	0	0%	0%	0%	0%	0%	51%	0	0
35	95	0	0	0%	0%	0%	0%	0%	51%	0	0
36	96	0	0	0%	0%	0%	0%	0%	52%	0	0
37	97	0	0	0%	0%	0%	0%	0%	52%	0	0
38	98	0	0	0%	0%	0%	0%	0%	53%	0	0
39	99	0	0	0%	0%	0%	0%	0%	53%	0	0
40	100	0	0	0%	0%	0%	0%	0%	54%	0	0

Item acquisition

Strategy

Linking with other skills

At a bare minimum, a Cast On Critical Strike setup will require three gems: an attack, Cast On Critical Strike itself, and a spell to be triggered. This generally leaves at most three other supports that may be linked. If possible, the supports should both increase the number of times Cast On Critical Strike triggers, and increase the effectiveness of the triggered spells. Note that Cast On Critical Strike cannot trigger more than once per frame, so staggered hits (e.g. multiple projectiles) are preferred to simultaneous hits (e.g. most area of effect damage) which will only proc at most once per attack.

Projectile

By far the most popular family of Cast on Critical Strike setups, projectile Cast On Critical Strike focuses on the projectile keyword. Popular attacks for this purpose include:

Spectral ThrowSpectral ThrowAttack, Projectile
Level: (1-20)
Cost: (7-9) Mana
Attack Speed: 110% of base
Projectile Speed: 1000Throws a spectral copy of your melee weapon. It flies out and then returns to you, in a spinning attack that damages enemies in its path.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Attack Speed1% increased Projectile Speed0.5% reduced Projectile Speed
Fires an additional ProjectileDeals (80-100)% of Base Attack DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Naturally staggers hits, automatic pierce, allows the use of melee weapons at range.
BarrageBarrageAttack, Projectile, Bow
Level: (1-20)
Cost: (7-11) Mana
Attack Damage: (47-54)% of base
Effectiveness of Added Damage: (47-55)%Requires Level 12After a short preparation time, you attack repeatedly with a ranged weapon. These attacks have a small randomised spread. Only works with Bows and Wands.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Projectile Damage1% chance to Knock Enemies Back on hit0.5% increased Attack SpeedInflict non-Damaging Ailments as though dealing 5% more DamageDeals (47-55)% of Base Attack Damage
Fires 4 additional Projectiles
Fires Projectiles sequentiallyPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Causes a large number of sequential hits per attack.
Power SiphonPower SiphonAttack, Projectile
Level: (1-20)
Cost: (7-11) Mana
Soul Gain Prevention: 0 sec
Attack Damage: (140-159)% of base
Effectiveness of Added Damage: (140-159)%Requires Level 12Fires your wand to unleash projectiles that fire toward enemies in front of you or to your sides, dealing increased damage and granting you a power charge if an enemy is killed by, or soon after, the hit.Per 1% Quality:1Superior2Anomalous3Divergent1% increased DamageFires an additional Projectile+1% to Damage over Time Multiplier for Ailments from Critical StrikesDeals (140-159)% of Base Attack Damage
Fires (4-7) additional Projectiles
20% chance to gain a Power Charge when Projectile Hits a Rare or Unique Enemy
+10% to Critical Strike Multiplier per Power Charge
20% increased Critical Strike Chance per Power Charge
Culling StrikePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Naturally produces power charges.
Split ArrowSplit ArrowAttack, Projectile, Physical, Bow
Level: (1-20)
Cost: (6-10) Mana
Attack Speed: 110% of base
Projectile Speed: 3260Fires multiple arrows at different targets.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Attack SpeedFires an additional Arrow1% increased DamageDeals (100-119)% of Base Attack Damage
Fires (4-8) additional Arrows
(1-56) to (2-85) Added Attack Physical DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Naturally large number of projectiles.
Tornado ShotTornado ShotAttack, Projectile, Bow
Level: (1-20)
Cost: (8-10) ManaRequires Level 28Fires a piercing shot that travels until it reaches the targeted location. It will then fire projectiles out in all directions from that point, which will travel for a short time before disappearing.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Projectile DamageConverts 3% of Physical Damage to a random Element0.5% increased Attack SpeedDeals (100-120)% of Base Attack Damage
Fires 3 secondary ProjectilesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Piercing on initial arrow(s) and produces three times as many subprojectiles.
Frost BladesFrost BladesAttack, Projectile, Melee, Strike, Cold
Level: (1-20)
Cost: 6 Mana
Projectile Speed: 2250Attack enemies with increased range, releasing icy blades from the first enemy hit which fly at other enemies. Requires a Melee Weapon.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Damage
1% increased Projectile SpeedFires 0.1 additional Projectiles1% increased Duration of Cold AilmentsDeals (100-140)% of Base Attack Damage
Fires (4-7) additional Projectiles
+(18-21) to Melee Strike Range
60% of Physical Damage Converted to Cold Damage
(2-75) to (3-113) Added Cold Damage
(0-19)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Five projectiles plus the initial hit.
Molten StrikeMolten StrikeAttack, Projectile, AoE, Melee, Strike, Fire
Level: (1-20)
Cost: 6 Mana
Attack Damage: (110-148)% of base
Effectiveness of Added Damage: (110-148)%
Projectile Speed: 750Infuses your melee weapon with molten energies to attack with physical and fire damage. This attack causes balls of molten magma to launch forth from the enemies you hit, divided amongst all enemies hit by the strike. These will explode, causing AoE attack damage to enemies where they land.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Fire Damage1% increased Projectile Speed+0.1 to Melee Strike Range2% increased Damage over TimeDeals (110-148)% of Base Attack Damage
60% of Physical Damage Converted to Fire Damage
Fires 3 additional Projectiles
Projectiles deal 50% less Damage
Damage Over Time caused by Projectiles deals 50% less Damage
+(2-6) to Melee Strike Range
(2-75) to (3-113) Added Fire DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Magma balls generally hit on different frames, causing a large number of hits.
Lightning StrikeLightning StrikeAttack, Projectile, Melee, Strike, Lightning
Level: (1-20)
Cost: 6 Mana
Attack Damage: (135-225)% of base
Effectiveness of Added Damage: (135-225)%Requires Level 12Infuses your melee weapon with electrical energies as you swing. In addition to converting some of your physical damage to lightning damage, the stored energy is released from the weapon as projectiles as you strike, flying out to hit farther-away enemies. The projectiles cannot miss if the melee attack hits a target.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Damage
1% increased Projectile SpeedProjectiles Pierce 0.1 additional TargetsFires 0.1 additional Projectiles1% of Physical Damage Converted to Lightning DamageDeals (135-225)% of Base Attack Damage
50% of Physical Damage Converted to Lightning Damage
Fires (4-7) additional Projectiles
(1-9) to (13-179) Added Lightning DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Three projectiles plus the initial hit.

Support skills that affect both the number of hits and crits projectile attacks generate and affect projectile spells include:

Greater Multiple Projectiles SupportGreater Multiple Projectiles SupportSupport, Projectile
Icon: P
Level: (1-20)
Cost & Reservation Multiplier: 165%Requires Level 38Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedSupported Skills have 1% reduced Mana Cost
Supported Skills have 0.5% increased Projectile SpeedProjectiles Fired by Supported Skills have 1% increased Projectile spreadSupported Skills fire 4 additional Projectiles
Supported Skills deal (35-26)% less Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Chain SupportChain SupportSupport, Chaining, Projectile
Icon: c
Level: (1-20)
Cost & Reservation Multiplier: 150%Requires Level 38Supports projectile skills, and any other skills that chain.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Chaining rangeSupported Skills have 1% increased Projectile SpeedProjectiles Fired by Supported Skills have 4% chance not to Pierce EnemiesSupported Skills Chain +2 times
Supported Skills deal (30-11)% less Damage with HitsThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Faster Projectiles SupportFaster Projectiles SupportSupport, Projectile
Icon: j
Level: (1-20)
Cost & Reservation Multiplier: 110%Requires Level 31Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedProjectiles have 3% chance to Return to you from final TargetSupported Skills have 0.5% increased Projectile Speed
Supported Skills deal 0.5% increased Projectile DamageSupported Skills have (50-69)% increased Projectile Speed
Supported Skills deal (20-29)% increased Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. for Spectral ThrowSpectral ThrowAttack, Projectile
Level: (1-20)
Cost: (7-9) Mana
Attack Speed: 110% of base
Projectile Speed: 1000Throws a spectral copy of your melee weapon. It flies out and then returns to you, in a spinning attack that damages enemies in its path.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Attack Speed1% increased Projectile Speed0.5% reduced Projectile Speed
Fires an additional ProjectileDeals (80-100)% of Base Attack DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and certain spells
Fork SupportFork SupportSupport, Projectile
Icon: Y
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 31Supports projectile skills, making their projectiles fork into two projectiles the first time they hit an enemy and don't pierce it.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Projectile DamageProjectiles from Supported Skills have 1% chance for an additional Projectile when ForkingProjectiles from Supported Skills Pierce an additional TargetSupported Skills deal (-10-9)% more Projectile Damage
Projectiles from Supported Skills ForkThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Pierce SupportPierce SupportSupport, Projectile
Icon: p
Level: (1-20)
Cost & Reservation Multiplier: 130%Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Projectile DamageProjectiles from Supported Skills Pierce 0.1 additional TargetsProjectiles from Supported Skills that have Pierced deal 2% increased DamageProjectiles from Supported Skills Pierce (2-4) additional Targets
Supported Skills deal (0-19)% more Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Power Charge On Critical SupportPower Charge On Critical SupportSupport
Icon: P
Level: (1-20)
Cost & Reservation Multiplier: 130%Requires Level 18Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Critical Strike ChanceSupported Skills have 1% chance to gain a Power Charge on Critical StrikeSupported Skills deal 0.1% increased Damage per Power ChargeSupported Skills have (35-54)% chance to gain a Power Charge on Critical Strike
Supported Skills deal 4% more Damage per Power ChargeThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Increased Critical Strikes SupportIncreased Critical Strikes SupportSupport
Icon: s
Level: (1-20)
Cost & Reservation Multiplier: 115%Requires Level 8Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Critical Strike ChanceSupported Skills have +0.25% to Critical Strike MultiplierSupported Skills have a .5% chance to gain a Power Charge on Killing BlowSupported Skills have (50-88)% increased Critical Strike Chance
Supported Skills have +(1-1.9)% to Critical Strike ChanceThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.

Useful projectile spells and their support limitations include:

Creeping FrostCreeping FrostSpell, Projectile, Duration, AoE, Cold
Level: (1-20)
Cost: (7-20) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 80%
Projectile Speed: 844
Radius: 12Requires Level 12Fire an icy projectile that bursts on impact or when reaching the targeted area, dealing area damage and creating a chilling area that deals cold damage over time. This area will creep across the ground towards nearby enemies until its duration expires.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of Effect1% increased Skill Effect DurationFires an additional ProjectileChilling Area has 2% increased Movement SpeedBase duration is 5 seconds
Deals (11-383) to (16-572) Cold Damage
Can have up to 10 Chilling Areas
Deals (16.7-1391.2) Base Cold Damage per second
Modifiers to Spell Damage apply to this Skill's Damage Over Time effectPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Does not explode on pierce, fork, or chain.
Ball LightningBall LightningSpell, Projectile, AoE, Lightning
Level: (1-20)
Cost: (12-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 50%
Projectile Speed: 400
Radius: 22Requires Level 28Fires a slow-moving projectile that periodically damages enemies in an area around it with bolts of lightning.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Lightning Damage0.5% increased Cast SpeedProjectiles have 0.5% chance to be SuperchargedDeals (3-22) to (48-426) Lightning DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Not affected by pierce, fork, or chain; hit rate limited per cast, not per projectile.
Ethereal KnivesEthereal KnivesSpell, Projectile, Physical, Duration
Level: (1-20)
Cost: (5-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Projectile Speed: 1300Fires an arc of knives in front of the caster which deals physical damage.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Projectile SpeedFires 0.1 additional Projectiles0.5% chance to Impale on Spell HitBase duration is 6 seconds
Deals (7-633) to (10-949) Physical Damage
Fires 9 additional Projectiles
Maximum 40 Lingering Blades can be left in the ground at a time
Leaves a Lingering Blade in the ground for every 3 Projectiles fired
Leaves 50% fewer Lingering Blades in the ground if you don't Cast this Spell yourself
(0-19)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Little benefit from Greater Multiple Projectiles SupportGreater Multiple Projectiles SupportSupport, Projectile
Icon: P
Level: (1-20)
Cost & Reservation Multiplier: 165%Requires Level 38Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedSupported Skills have 1% reduced Mana Cost
Supported Skills have 0.5% increased Projectile SpeedProjectiles Fired by Supported Skills have 1% increased Projectile spreadSupported Skills fire 4 additional Projectiles
Supported Skills deal (35-26)% less Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. but more from Faster Projectiles SupportFaster Projectiles SupportSupport, Projectile
Icon: j
Level: (1-20)
Cost & Reservation Multiplier: 110%Requires Level 31Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedProjectiles have 3% chance to Return to you from final TargetSupported Skills have 0.5% increased Projectile Speed
Supported Skills deal 0.5% increased Projectile DamageSupported Skills have (50-69)% increased Projectile Speed
Supported Skills deal (20-29)% increased Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket..
FireballFireballProjectile, Spell, AoE, Fire
Level: (1-20)
Cost: (6-25) Mana
Cast Time: 0.75 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 240%
Projectile Speed: 1040
Radius: 9Unleashes a ball of fire towards a target which explodes, damaging nearby foes.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Projectile Speed2% reduced Projectile Speed
3% increased Area of Effect3% increased Effect of non-Damaging Ailments on Enemies
-2% more Damage with Ignite0.25% chance to Debilitate Enemies for 1 second on HitDeals (9-1095) to (14-1643) Fire Damage
(20-39)% chance to Ignite enemies
(50-88)% more Damage with Ignite
Projectiles gain Radius as they travel farther, up to +(0-9) RadiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Does not explode on pierce, fork, or chain.
Freezing PulseFreezing PulseSpell, Projectile, Cold
Level: (1-20)
Cost: (5-21) Mana
Cast Time: 0.65 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 200%
Projectile Speed: 1800An icy projectile which has a chance to freeze enemies it passes through. The projectile fades quickly, reducing damage and freezing chance until it dissipates.Per 1% Quality:1Superior2Anomalous3Divergent2% increased Projectile SpeedProjectiles gain Damage over time, dealing up to 3% more Damage by the time they dissipate
Deals 99% of DamageCannot Pierce EnemiesDeals (8-888) to (12-1332) Cold Damage
Projectiles Pierce all Targets
Projectiles lose Damage over time, dealing up to 50% less Damage by the time they dissipate
Projectiles have 25% chance to Freeze, which is lost over the first quarter of their flight
(0-19)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Benefits from Faster Projectiles SupportFaster Projectiles SupportSupport, Projectile
Icon: j
Level: (1-20)
Cost & Reservation Multiplier: 110%Requires Level 31Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedProjectiles have 3% chance to Return to you from final TargetSupported Skills have 0.5% increased Projectile Speed
Supported Skills deal 0.5% increased Projectile DamageSupported Skills have (50-69)% increased Projectile Speed
Supported Skills deal (20-29)% increased Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket..
Ice SpearIce SpearSpell, Projectile, Cold
Level: (1-20)
Cost: (8-23) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.70 sec
Critical Strike Chance: 7.00%
Effectiveness of Added Damage: 80%
Projectile Speed: 1000Requires Level 12Launches shards of ice in rapid succession. After travelling a short distance they change to a second form, which moves much faster and pierces through enemies.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal2% increased Projectile SpeedProjectiles Pierce 0.1 additional Targets1% increased Cold DamageTravels 1% reduced distance before changing formsDeals (22-383) to (33-575) Cold Damage
Second form has 600% increased Critical Strike Chance
Second form has 300% more Projectile Speed
Second form has +(30-49)% to Critical Strike Multiplier
Fires an additional ProjectilePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Already pierces in first form.
Rolling MagmaRolling MagmaSpell, AoE, Fire, Projectile, Chaining
Level: (1-20)
Cost: (6-23) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.70 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 230%Lob a fiery orb that explodes as it hits the ground. The skill chains, releasing another fiery orb that repeats this effect.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Damage0.5% increased Area of Effect1% increased Projectile Speed0.5% chance to Detonate for Double Damage instead of ChainingDeals (9-1031) to (12-1546) Fire Damage
Chains +(2-3) Times
Projectiles can Chain when impacting the ground
Projectiles do not change direction when Chaining
+(0-4) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
SparkSparkSpell, Projectile, Duration, Lightning
Level: (1-20)
Cost: (5-21) Mana
Cast Time: 0.65 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 125%
Projectile Speed: 560Launches unpredictable sparks that move randomly until they hit an enemy or expire.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Projectile SpeedProjectiles Pierce 0.1 additional TargetsFires 0.1 additional Projectiles2% of Lightning Damage Converted to Chaos DamageDeals (2-29) to (70-1326) Lightning Damage
Base duration is 2 seconds
Fires (4-6) additional Projectiles
(0-19)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Less benefit from Greater Multiple Projectiles SupportGreater Multiple Projectiles SupportSupport, Projectile
Icon: P
Level: (1-20)
Cost & Reservation Multiplier: 165%Requires Level 38Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedSupported Skills have 1% reduced Mana Cost
Supported Skills have 0.5% increased Projectile SpeedProjectiles Fired by Supported Skills have 1% increased Projectile spreadSupported Skills fire 4 additional Projectiles
Supported Skills deal (35-26)% less Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. but more from Faster Projectiles SupportFaster Projectiles SupportSupport, Projectile
Icon: j
Level: (1-20)
Cost & Reservation Multiplier: 110%Requires Level 31Supports projectile skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
Supported Skills have 0.5% increased Cast SpeedProjectiles have 3% chance to Return to you from final TargetSupported Skills have 0.5% increased Projectile Speed
Supported Skills deal 0.5% increased Projectile DamageSupported Skills have (50-69)% increased Projectile Speed
Supported Skills deal (20-29)% increased Projectile DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket..

A second spell may satisfactorily be used in place of a support.

Area of Effect

Some attacks have advantageous built-in area of effect:

Ground SlamGround SlamAttack, AoE, Slam, Melee
Level: (1-20)
Cost: 6 Mana
Attack Speed: 90% of base
Attack Damage: (115-150)% of base
Effectiveness of Added Damage: (115-150)%
Radius: 35Slams the ground in front of you, creating a wave that travels forward and damages enemies with an increased chance to stun. The wave deals more damage to closer enemies. Requires an Axe, Mace, Sceptre, Staff or Unarmed.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Stun Duration on enemies
0.5% increased Area of Effect0.5% increased Attack Speed3% increased Area of Effect
2% reduced angleDeals (115-188)% of Base Attack Damage
25% reduced Enemy Stun Threshold
Deals up to (40-49)% more Damage to closer targets
+(0-6) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: The area of effect is progressive, not instant, allowing multiple casts per attack. However, it can only get one cast against a single target.

This works well with spells which have Area of Effect component, such as:

Cold SnapCold SnapSpell, AoE, Cold, Duration
Level: (1-20)
Cost: (11-28) Mana
Cooldown Time: 3.00 sec
Can Store 1 Use(s)
Cast Time: 0.85 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 140%
Radius: 16Requires Level 16Creates a sudden burst of cold in a targeted area, damaging enemies. This also creates an expanding area which is filled with chilled ground, and deals cold damage over time to enemies. Enemies that die while in the area have a chance to grant Frenzy Charges. The cooldown can be bypassed by expending a Frenzy Charge.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% increased Effect of Chill2% increased Damage with Hits and AilmentsDeals (32-666) to (47-999) Cold Damage
Base duration is 5 seconds
Deals (26.3-1193.2) Base Cold Damage per second
25% chance to gain a Frenzy Charge when an Enemy Dies while in this Skill's Area
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
(0-19)% increased Effect of ChillPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Ice NovaIce NovaSpell, AoE, Cold, Nova
Level: (1-20)
Cost: (8-23) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Radius: 30Requires Level 12A chilling circle of ice expands from the caster. If the caster targets near their Frostbolt projectiles, it will expand from a number of those projectiles instead. If this skill would repeat when cast this way, it will instead expand again from the same projectiles after a short delay.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of Effect1.5% increased Damage with Hits against Chilled Enemies0.5% increased Cast Speed0.5% increased Effect of ChillDeals (18-518) to (26-762) Cold Damage
Can expand from up to 2 Frostbolt Projectiles
Adds (3-79) to (4-116) Cold Damage against Chilled Enemies
20% less Area of Effect when Cast on Frostbolt
+(0-4) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Flame SurgeFlame SurgeSpell, AoE, Fire
Level: (1-20)
Cost: (6-16) Mana
Cast Time: 0.50 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Radius: 30Requires Level 12Strikes enemies in front of you with a surge of flame. Burning enemies are dealt more damage.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Cast Speed0.5% chance to Scorch Enemies+0.25 to Area of Effect lengthDeals (27-563) to (40-844) Fire Damage
(50-88)% more Damage with Hits against Burning enemies
Cannot Ignite
+(0-9) to Area of Effect lengthPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Glacial CascadeGlacial CascadeSpell, AoE, Cold, Physical
Level: (1-20)
Cost: (10-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 45%
Radius: 12Requires Level 28Icicles emerge from the ground in a series of small bursts, each damaging enemies caught in the area and knocking them back in the direction of the next burst.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Damage0.5% increased Area of Effect1% reduced Area of Effect
Final Burst Deals 2% more DamageDeals (21-207) to (32-311) Physical Damage
Causes 4 Bursts
100% of Physical Damage Converted to Cold Damage
Cannot Knockback Unique Enemies more than once per second
Final Burst Deals 200% more Damage
Final Burst has 100% more Area of Effect
Final Burst cannot Knockback
Knocks Enemies Back on HitPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Rolling MagmaRolling MagmaSpell, AoE, Fire, Projectile, Chaining
Level: (1-20)
Cost: (6-23) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.70 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 230%Lob a fiery orb that explodes as it hits the ground. The skill chains, releasing another fiery orb that repeats this effect.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Damage0.5% increased Area of Effect1% increased Projectile Speed0.5% chance to Detonate for Double Damage instead of ChainingDeals (9-1031) to (12-1546) Fire Damage
Chains +(2-3) Times
Projectiles can Chain when impacting the ground
Projectiles do not change direction when Chaining
+(0-4) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Support gems which can benefit this setup are:

Multistrike SupportMultistrike SupportAttack, Melee, Support
Icon: 3
Level: (1-20)
Cost & Reservation Multiplier: 160%Requires Level 38Supports melee attack skills, making them repeat twice when used, targeting a random enemy each time. Cannot support Vaal skills, totem skills, channelling skills, or triggered skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Melee Physical DamageSupported Skills have 1% reduced Attack Speed
Supported Skills have 1% increased Area of Effect per RepeatSupported Skills have 0.5% increased Attack SpeedSupported Skills Repeat 2 additional times
Supported Skills have (35-44)% more Melee Attack Speed
First Repeat of Supported Skills deals 22% more Damage
Second Repeat of Supported Skills deals 44% more Damage
Supported Skills deal (20-10)% less Attack DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Increased Area of Effect SupportIncreased Area of Effect SupportSupport, AoE
Icon: E
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 38Supports any skill with an area of effect.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Area DamageSupported Skills have 0.5% increased Attack and Cast SpeedSupported Skills have 0.5% increased Area of EffectSupported Skills have (30-49)% increased Area of EffectThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Concentrated Effect SupportConcentrated Effect SupportSupport, AoE
Icon: o
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 18Supports any skill with an area of effect, regardless of whether that skill deals damage.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Area DamageSupported Skills have 0.5% less Area of EffectSupported Skills have 0.5% reduced Enemy Stun ThresholdSupported Skills have 30% less Area of Effect
Supported Skills deal (35-54)% more Area DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Power Charge On Critical SupportPower Charge On Critical SupportSupport
Icon: P
Level: (1-20)
Cost & Reservation Multiplier: 130%Requires Level 18Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Critical Strike ChanceSupported Skills have 1% chance to gain a Power Charge on Critical StrikeSupported Skills deal 0.1% increased Damage per Power ChargeSupported Skills have (35-54)% chance to gain a Power Charge on Critical Strike
Supported Skills deal 4% more Damage per Power ChargeThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Increased Critical Strikes SupportIncreased Critical Strikes SupportSupport
Icon: s
Level: (1-20)
Cost & Reservation Multiplier: 115%Requires Level 8Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Critical Strike ChanceSupported Skills have +0.25% to Critical Strike MultiplierSupported Skills have a .5% chance to gain a Power Charge on Killing BlowSupported Skills have (50-88)% increased Critical Strike Chance
Supported Skills have +(1-1.9)% to Critical Strike ChanceThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.

Minion

Another possibility is to use attacks to trigger minions, which benefit from attack supports. In addition to the projectile skills listed before, we have some other good choices:

Double StrikeDouble StrikeAttack, Melee, Strike, Physical
Level: (1-20)
Cost: 5 Mana
Attack Speed: 80% of base
Attack Damage: (91-112)% of base
Effectiveness of Added Damage: (91-112)%Performs two fast strikes with a melee weapon.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Attack Speed2% increased Elemental Damage1% chance to Maim on HitDeals (91.3-112)% of Base Attack Damage
Adds (3-113) to (5-169) Physical Damage against Bleeding Enemies
25% chance to cause Bleeding
+(0-2) to Melee Strike RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Causes two hits per attack, only uses main hand when dual-wielding.
CycloneCycloneAttack, AoE, Movement, Channelling, Physical, Melee
Level: (1-20)
Cost: 2 Mana
Attack Speed: 300% of base
Attack Damage: (44-54)% of base
Effectiveness of Added Damage: (44-54)%Requires Level 28Channel this skill to move towards a targeted location while spinning, building up stages while constantly attacking enemies in an area around you. While channelling this skill, you cannot be knocked back.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of Effect1% chance to Knock Enemies Back on hit0.25% more Movement Speed1% Chance to Avoid Interruption from Stuns While Using this SkillDeals (44-54)% of Base Attack Damage
30% less Movement Speed
First Hit deals 50% less Damage
Gains 1 Stage every (0.33-0.17) seconds while Channelling
+1 to radius per Stage
Lose 1 Stage every 0.33 seconds while not Channelling
(5-28) to (8-42) Added Attack Physical Damage
Maximum (3-6) Stages
8% increased Area of Effect per 1 additional Melee Strike RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: Causes staggered hits rapidly.

Minions generally have poor critical strike capabilities, so critical strike supports are not as effective as they are with projectile spells. Good attack supports include:

Faster Attacks SupportFaster Attacks SupportAttack, Support
Icon: A
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 18Supports attack skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack SpeedSupported Skills have 0.5% increased Cooldown Recovery RateBleeding inflicted by Supported Skills deals Damage 0.5% fasterSupported Skills have (25-44)% increased Attack SpeedThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Melee Splash SupportMelee Splash SupportSupport, Melee, Attack, Strike, AoE
Icon: S
Level: (1-20)
Cost & Reservation Multiplier: 140%
Radius: 14Requires Level 8Supports melee strike skills, causing their melee strike to deal splash damage around each target hit.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Area of EffectSupported Skills deal 1% increased Melee DamageSupported Skills deal -2% less Damage to surrounding targetsSupported Skills deal (50-41)% less Damage to surrounding targets
Supported Skills deal Splash Damage to surrounding targets
Supported Skills have (0-57)% more Melee Splash Area of EffectThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.: While it does not increase procs much due to the splash happening on a single frame, it greatly improves minion effectiveness.
Multistrike SupportMultistrike SupportAttack, Melee, Support
Icon: 3
Level: (1-20)
Cost & Reservation Multiplier: 160%Requires Level 38Supports melee attack skills, making them repeat twice when used, targeting a random enemy each time. Cannot support Vaal skills, totem skills, channelling skills, or triggered skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Melee Physical DamageSupported Skills have 1% reduced Attack Speed
Supported Skills have 1% increased Area of Effect per RepeatSupported Skills have 0.5% increased Attack SpeedSupported Skills Repeat 2 additional times
Supported Skills have (35-44)% more Melee Attack Speed
First Repeat of Supported Skills deals 22% more Damage
Second Repeat of Supported Skills deals 44% more Damage
Supported Skills deal (20-10)% less Attack DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.: For Melee attacks.
Additional Accuracy SupportAdditional Accuracy SupportAttack, Support
Icon: a
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 8Supports attack skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Accuracy RatingSupported Skills have +1% to Critical Strike MultiplierSupported Skills deal 0.2% increased Attack damage per 1000 Accuracy RatingSupported Skills have +(74-1034) to Accuracy RatingThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.: Improves minion accuracy greatly, removes the need for accuracy on gear.
Since patch 2.0.0, increasing gem quality on Additional Accuracy SupportAdditional Accuracy SupportAttack, Support
Icon: a
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 8Supports attack skills.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Accuracy RatingSupported Skills have +1% to Critical Strike MultiplierSupported Skills deal 0.2% increased Attack damage per 1000 Accuracy RatingSupported Skills have +(74-1034) to Accuracy RatingThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. no longer grants 1% increased chance of critical strike per 1% gem quality, and instead gives a simple 1% increased accuracy per 1% gem quality. Accuracy is a desirable stat, as one cannot crit what they cannot actually hit. However, the loss of the critical strike stat granted from gem quality means this is no longer a top-tier supporting gem choice. Losing the critical strike chance affects not only the minion gem in the link; as mentioned minions have poor critical strike capabilities, and were only the minion affected there would be no noticable difference after patch 2.0.0. Of course, this is not the case, as the critical strike chance also affects the attack you are using to proc CoC (the 'trigger' spell), and any other spells to be cast on critical strike (the 'triggered' spells) in the link. This essentially results in less CoC procs overall, less damage from your trigger spell, and less critical hits from your triggered spells as well. This triple-whammy means that Additional Accuracy Support is no longer the top-tier option that it once was, with or without an attached minion and minion-buffing support gems. When considering only the minion, and ignoring any of the triggering/triggered spells & CoC proc rate, the golem/minion is likely perform better with a Faster Attacks Support instead of Additional Accuracy Support; minions will miss more, but making far more attacks per measurement of time. No longer recommended in a CoC link since patch 2.0.0 except to fill in accuracy you desperately need due to poor passive tree and/or gear options.

Most minions are severely capped in number and thus do not benefit much from the high proc rate of Cast On Critical Strike. However, there is one that works well:

Summon Raging SpiritSummon Raging SpiritSpell, Minion, Duration, Fire
Level: (1-20)
Cost: (4-12) Mana
Cast Time: 0.50 secSummons a short-lived flaming skull that rushes at nearby enemies and attacks them rapidly. Enemies will not directly engage these spirits, and can pass through them.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Minion Movement SpeedMinions have 1% increased DurationMaximum 0.1 Summoned Raging SpiritsMinions can't be Damaged for 0.1 seconds after being SummonedBase duration is 5 seconds
Maximum 20 Summoned Raging Spirits
Minions gain 15% less Added Damage
Minions cannot Taunt EnemiesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Passives and gear

Since "double-dipping" on support gems is key to an effective Cast On Critical Strike setup, having a 5- or 6-link is more important than it is for most builds.

Unlike conventional attack builds, attack damage is not necessary on passives or gear, though it can be helpful in situations where the linked spells are less effective. Attack speed and critical strike chance are the two essential statistics.

Some base item types tend to have better critical hits per second than others:

Wands
Claws, Daggers
Sceptres, Thrusting Swords
Bows, Staves, 1H Swords

Possibly good uniques to use include:

Item	Perfect crits/s
Module Error: Item link: No results found for search parameter "Death's Harp".	9.08%
Module Error: Item link: No results found for search parameter "Doomfletch".	11.17%
Module Error: Item link: No results found for search parameter "Quill Rain".	15.50%
Module Error: Item link: No results found for search parameter "Windripper".	17.25%
Module Error: Item link: No results found for search parameter "Mortem Morsu".	13.16%
Module Error: Item link: No results found for search parameter "Bino's Kitchen Knife".	14.28%
Module Error: Item link: No results found for search parameter "Ungil's Gauche".	10.47%
Module Error: Item link: No results found for search parameter "Divinarius".	10.47%
Module Error: Item link: No results found for search parameter "Brightbeak".	12.19%
Module Error: Item link: No results found for search parameter "Doryani's Catalyst".	10.75%
Module Error: Item link: No results found for search parameter "Hegemony's Era".	12.09%
Module Error: Item link: No results found for search parameter "Dreamfeather".	10.00%
Module Error: Item link: No results found for search parameter "Piscator's Vigil".	16.67%
Module Error: Item link: No results found for search parameter "Trypanon".	63.00%

Related modifiers

The following modifiers are related to Cast On Critical Strike Support: No results found

Legacy mods

The list below displays Cast On Critical Strike Support related modifiers where all spawn weights have been set to zero. No results found

Related unique items

The following unique items are related to Cast On Critical Strike Support:

Item	Base Item		Stats

Version history

Version	Changes
3.15.0	Supported Skills now deal 20-29% more Spell Damage (previously 20-39%).
3.5.0	Cast on Critical Strike now has a 150ms cooldown.
2.4.0	For Cast on Critical Strike, Cast on Melee Kill SupportCast on Melee Kill SupportSupport, Melee, Attack, Spell, Trigger Icon: & Level: (1-20) Cost & Reservation Multiplier: 140% Cooldown Time: 0.15 secRequires Level 38Must support both a melee attack skill and a spell skill to work. The attack skill will trigger a spell when it kills an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Attack Damage Supported Skills deal 0.5% increased Spell DamageSupported Skills deal 3% increased Attack DamageSupported Skills have 1% increased Cooldown Recovery RateSupported Melee Attacks will Trigger a Supported Spell on Kill Supported Spells have (20-39)% more Spell Damage You cannot Cast Supported Triggerable Spells directlyThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket., Module Error: Item link: No results found for search parameter "Mjölner". and Module Error: Item link: No results found for search parameter "Cospri's Malice"., only one skill can be triggered per trigger event. The spell that is triggered is determined based on the order in which it is socketed, and will cast supported spells in sequence, even across multiple attacks. These items and skills also have cooldowns which limit how often a skill is cast. These cooldowns apply per-triggered-skill, rather than applying to the trigger gem itself. Cast on Critical Strike now has a 500ms cooldown, and will now only trigger one spell per frame when you critically strike. It now has 100% chance to trigger casts when you critically strike. It now has 20% more spell damage at level 1, tapered up to 39% at level 20 (1% per level).
1.3.0	Cast on Critical Strike's cooldown has been increased from 0.01 seconds to 0.05 seconds.
1.2.0	The chance to cast has been reduced by a flat 20% at all levels.
1.0.5	Cast on Critical Strike now has a 10 millisecond cooldown. The chance to cast supported skills has been increased by a flat 20%.
1.0.0e	The Cast on Crit support gem has been renamed to Cast on Critical Strike
1.0.0	Cast on Crit has been added to the game.

ru:Сотворение чар при критическом ударе

v t e Support gems

Dexterity gems	Added Cold Damage Support Additional Accuracy Support Advanced Traps Support Arrow Nova Support Barrage Support Blind Support Block Chance Reduction Support Cast On Critical Strike Support Cast on Death Support Chain Support Chance to Flee Support Chance to Poison Support Charged Traps Support Close Combat Support Cluster Traps Support Cold Penetration Support Critical Strike Affliction Support Culling Strike Support Deadly Ailments Support Enhance Support Faster Attacks Support Faster Projectiles Support Fork Support Greater Multiple Projectiles Support Greater Volley Support Hypothermia Support Ice Bite Support Impale Support Lesser Multiple Projectiles Support Mana Leech Support Mirage Archer Support Multiple Traps Support Nightblade Support Onslaught Support Pierce Support Point Blank Support Second Wind Support Slower Projectiles Support Swift Affliction Support Swift Assembly Support Trap and Mine Damage Support Trap Support Vicious Projectiles Support Vile Toxins Support Void Manipulation Support Volley Support Withering Touch Support

Intelligence gems	Added Chaos Damage Support Added Lightning Damage Support Arcane Surge Support Archmage Support Blasphemy Support Blastchain Mine Support Bonechill Support Cast when Stunned Support Cast while Channelling Support Charged Mines Support Combustion Support Concentrated Effect Support Controlled Destruction Support Decay Support Efficacy Support Elemental Army Support Elemental Focus Support Elemental Penetration Support Elemental Proliferation Support Energy Leech Support Enlighten Support Faster Casting Support Feeding Frenzy Support Hextouch Support High-Impact Mine Support Ignite Proliferation Support Immolate Support Impending Doom Support Increased Area of Effect Support Increased Critical Damage Support Increased Critical Strikes Support Infernal Legion Support Infused Channelling Support Innervate Support Intensify Support Item Rarity Support Lightning Penetration Support Meat Shield Support Minefield Support Minion Damage Support Minion Life Support Minion Speed Support Physical to Lightning Support Pinpoint Support Power Charge On Critical Support Predator Support Spell Cascade Support Spell Echo Support Summon Phantasm Support Swiftbrand Support Trinity Support Unbound Ailments Support Unleash Support

Strength gems	Added Fire Damage Support Ancestral Call Support Arrogance Support Ballista Totem Support Bloodlust Support Bloodthirst Support Brutality Support Burning Damage Support Cast on Melee Kill Support Cast when Damage Taken Support Chance to Bleed Support Cold to Fire Support Cruelty Support Damage on Full Life Support Elemental Damage with Attacks Support Empower Support Endurance Charge on Melee Stun Support Fire Penetration Support Fist of War Support Fortify Support Generosity Support Increased Duration Support Inspiration Support Iron Grip Support Iron Will Support Item Quantity Support Knockback Support Less Duration Support Life Gain on Hit Support Life Leech Support Lifetap Support Maim Support Melee Physical Damage Support Melee Splash Support Multiple Totems Support Multistrike Support Pulverise Support Rage Support Ruthless Support Shockwave Support Spell Totem Support Stun Support Urgent Orders Support

Other support gems	Awakened support skill gem

Related items	Active skill gem Vaal skill gem