Cast On Critical Strike SupportCritical, Support, Spell, Trigger Icon: & Level: (1-20) Cost & Reservation Multiplier: 120% Cooldown Time: 0.15 sec Can Store 1 Use(s)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 with a reservation cannot be triggered.Supported Attacks will Trigger a Supported Spell when you Crit an Enemy Supported Skills deal (19-10)% less Spell Damage
Additional Effects From 1-20% Quality: Supported Skills have (1-20)% increased Attack Critical Strike Chance Supported Skills have (1-20)% increased Spell 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 Skill Gem you wish to augment. Right click to remove from a socket.
Acquisition Drop level: 38Metadata Item class: Support Gem Metadata ID: Metadata/Items/Gems/SupportGemCastOnCrit
If more than one spell is supported by Cast on Critical Support, the order of the triggered spells will follow the trigger order. (Successive triggers cycle through all valid supported spells in the same order.) Each supported skill has its own cooldown, except multiple copies of the same spell, which share their cooldown.
Due to how server frames are calculated, there are breakpoints of cooldown recovery rates required to achieve a higher effective trigger rate.[1]. Additional cooldown reduction that does not reach the next threshold is wasted.
The attack rates below are maximums; exceeding the attack rates even slightly can significantly reduce proc rate due to skipping procs while the skill is still on cooldown. It is better to be slightly below the attack rate than above it. Note that multiples of the attack rate also work (e.g. 12.12 APS will proc at the same rate as 6.06 APS).
Cooldown Rate
Effective Cooldown
Attack Rate
0%
165 ms
6.06
14%+
132 ms
7.57
52%+
99 ms
10.10
128%+
66 ms
15.15
Gem level progression
Level
Less Spell Damage
Exp.
Total Exp.
1
38
40
27
19%
0
0
2
40
41
29
19%
388734
388734
3
42
43
30
18%
477437
866171
4
44
45
31
18%
583786
1449957
5
46
47
33
17%
710359
2160316
6
48
49
34
17%
1355511
3515827
7
50
51
35
16%
1138877
4654704
8
52
53
37
16%
1368233
6022937
9
54
55
38
15%
1638338
7661275
10
56
57
39
15%
1956648
9617923
11
58
58
41
14%
3655184
13273107
12
60
60
42
14%
3017327
16290434
13
62
62
43
13%
3576232
19866666
14
64
64
44
13%
4231667
24098333
15
65
65
45
12%
2395078
26493411
16
66
66
46
12%
8421063
34914474
17
67
67
46
11%
16159983
51074457
18
68
68
47
11%
41170367
92244824
19
69
69
48
10%
86794448
179039272
20
70
70
48
10%
157405063
336444335
21
72
72
50
9%
—
—
22
74
—
—
9%
—
—
23
76
—
—
8%
—
—
24
78
—
—
8%
—
—
25
80
—
—
7%
—
—
26
82
—
—
7%
—
—
27
84
—
—
6%
—
—
28
86
—
—
6%
—
—
29
88
—
—
5%
—
—
30
90
—
—
5%
—
—
31
91
—
—
5%
—
—
32
92
—
—
4%
—
—
33
93
—
—
4%
—
—
34
94
—
—
4%
—
—
35
95
—
—
3%
—
—
36
96
—
—
3%
—
—
37
97
—
—
3%
—
—
38
98
—
—
3%
—
—
39
99
—
—
3%
—
—
40
100
—
—
2%
—
—
Item acquisition
Cast On Critical Strike Support can drop anywhere.
Recipes
Cast On Critical Strike Support can be created from the following recipes:
Amount
Part
Description
Meta
13
The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
Random corruptedlevel 21 Spell gem
A
9
Gift of the Gemling QueenGift of the Gemling Queen9Level 20 Support GemOur Lady Dialla, as a symbol of our progress, shines greater than all the gems.
Random level 20 support gem
A
7
Dialla's SubjugationDialla's Subjugation7Support Gem Quality:+23% CorruptedA symbol of beauty and innocence The gems corrupted her mind Malachai corrupted her gems All but a glimmer of greatness lost in madness
Random corruptedsupport gem with 23% quality
A
6
The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox." - Ezomyte Proverb
Random level 20 gem
A
3
Gemcutter's PromiseGemcutter's Promise3Gem Quality:+20%"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
Random gem with 20% quality
A
1
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Random gem with 1–20% quality
A
1
The VoidThe Void1Reach into the Void and claim your prize.
Random divination card set exchange
A
Vendor reward
This item can be bought at the listed NPC vendors, after completing the following quests:
Fundamentally, a Cast on Critical setup requires an attack, a spell, and the Cast on Crit Support itself. Each of these pieces can be from gems, or one of them can be replaced by modifiers or skills granted by items.
Certain skills that can deal multiple hits throughout its animation such as Spectral ThrowSpectral ThrowAttack, Projectile Level: (1-20) Cost: (5-9) Mana Attack Speed: 110% of base Attack Damage: (100-150)% of base Effectiveness of Added Damage: (100-150)%Throws 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. Additional Effects From 1-20% Quality: Projectiles that have Pierced deal (0.5-10)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and Lancing SteelLancing SteelAttack, Projectile, Physical Level: (1-20) Cost: (9-13) Mana Attack Speed: 80% of base Attack Damage: (110-175)% of base Effectiveness of Added Damage: (110-175)%Requires Level 28Thrust an Axe or Sword forward, consuming your Steel Shards to form a cluster of shards in front of you. The cluster will fire a number of projectiles in sequence, aiming at enemies in front of or close to it. Steel Shards are gained with the Call of Steel Skill.Fires 4 Projectiles Fires 50% more Projectiles per Steel Shard consumed 20% chance to Impale Enemies on Hit Hits after the first on each Enemy deal 60% less Damage Consumes up to 4 Steel Shards
Additional Effects From 1-20% Quality: Fires +(0.05-1) ProjectilesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. can proc spells multiple times with a single attack.
Weapon choice
The choice of weapon on a character will affect both the variety of attacks that can proc Cast on Crit, as well as the investment into critical strike chance required. Generally, a weapon with high critical strike chance and attack speed is preferred.
Melee skills such as CycloneCycloneAttack, AoE, Movement, Channelling, Melee Level: (1-20) Cost: (2-3) Mana Attack Speed: 300% of base Attack Damage: (60-111)% of base Effectiveness of Added Damage: (60-111)% AoE Radius: 1.6Requires Level 28Channel this skill to move towards a targeted location while spinning constantly attacking enemies in an area around you. While channelling this skill, you cannot be knocked back.10% increased Area of Effect per 0.1 metre additional Melee Strike Range 30% less Movement Speed
Additional Effects From 1-20% Quality: (0.5-10)% more Movement SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., Static StrikeStatic StrikeAttack, Melee, Strike, AoE, Duration, Lightning, Chaining Level: (1-20) Cost: (6-10) Mana Attack Damage: (150-346)% of base Effectiveness of Added Damage: (150-346)% AoE Radius: 19Requires Level 12Attack with a melee weapon, gaining static energy for a duration if you hit an enemy. While you have static energy, you'll frequently hit a number of nearby enemies with beams, dealing attack damage.50% of Physical Damage Converted to Lightning Damage Base duration is 3.00 seconds Beams Hit Enemies every (0.40-0.32) seconds Chains +1 Times Beams deal 40% less Damage (4-6) maximum Beam Targets
Additional Effects From 1-20% Quality: (1-20)% increased Beam frequencyPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., etc. will prefer weapons such as Jewelled FoilJewelled FoilOne Handed Sword Physical Damage: 32-60 Critical Strike Chance: 5.50% Attacks per Second: 1.60 Weapon Range: 1.4 metresRequires Level 68, 212 Dex+25% to Global Critical Strike Multiplier, Karui SceptreKarui SceptreSceptre Physical Damage: 37-55 Critical Strike Chance: 7.00% Attacks per Second: 1.50 Weapon Range: 1.1 metresRequires Level 56, 96 Str, 96 Int26% increased Elemental Damage, Imperial SkeanImperial SkeanRune Dagger Physical Damage: 18-73 Critical Strike Chance: 8.00% Attacks per Second: 1.50 Weapon Range: 1.0 metresRequires Level 66, 95 Dex, 131 Int30% increased Global Critical Strike Chance, or Imperial ClawImperial ClawClaw Physical Damage: 25-65 Critical Strike Chance: 7.00% Attacks per Second: 1.60 Weapon Range: 1.1 metresRequires Level 68, 131 Dex, 95 IntGrants 46 Life per Enemy Hit/Gemini ClawGemini ClawClaw Physical Damage: 23-68 Critical Strike Chance: 7.50% Attacks per Second: 1.50 Weapon Range: 1.1 metresRequires Level 72, 121 Dex, 121 IntGrants 14 Mana per Enemy Hit Grants 38 Life per Enemy Hit.
Bow skills such as Tornado ShotTornado ShotAttack, Projectile, Bow Level: (1-20) Cost: (9-13) Mana Attack Speed: 80% of base Attack Damage: (100-120)% of base Effectiveness of Added Damage: (100-120)%Requires 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.Fires 3 secondary Projectiles
Additional Effects From 1-20% Quality: (2-40)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. or Blast RainBlast RainFire, Attack, AoE, Projectile, Bow Level: (1-20) Cost: (7-10) Mana Attack Damage: (30-35)% of base Effectiveness of Added Damage: (30-36)%Requires Level 28Fires arrows up in the air, to rain down in an area. Each arrow deals area damage around where it lands, and they will all overlap on the targeted location.Fires 6 Arrows 100% of Physical Damage Converted to Fire Damage Penetrates (20-30)% Fire Resistance
Additional Effects From 1-20% Quality: Fires +(0.05-1) ArrowsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. typically prefer a Spine BowSpine BowBow Physical Damage: 38-115 Critical Strike Chance: 6.50% Attacks per Second: 1.40Requires Level 64, 212 Dex.
Wand skills such as Kinetic BlastKinetic BlastAttack, Projectile, AoE Level: (1-20) Cost: (6-9) Mana Attack Speed: 115% of base Attack Damage: (140-155)% of base Effectiveness of Added Damage: (140-155)% AoE Radius: 14Requires Level 28Fires a projectile from a Wand that causes a series of area explosions in a secondary radius around its point of impact, each damaging enemies.Kinetic Blast creates 4 additional explosions Increases and Reductions to Spell Damage also apply to Attack Damage from this Skill at 200% of their value 35% less Area Damage Base explosion radius is 1.4 metres Base secondary radius is 2 metres
Additional Effects From 1-20% Quality: Kinetic Blast creates (0.05-1) additional explosionsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. typically prefer an Imbued WandImbued WandWand Physical Damage: 27-50 Critical Strike Chance: 8.00% Attacks per Second: 1.60Requires Level 59, 188 Int(33-37)% increased Spell Damage.
Some two-handed weapons such as Spine BowSpine BowBow Physical Damage: 38-115 Critical Strike Chance: 6.50% Attacks per Second: 1.40Requires Level 64, 212 Dex and Exquisite BladeExquisite BladeTwo Hand Sword Physical Damage: 67-112 Critical Strike Chance: 5.70% Attacks per Second: 1.35 Weapon Range: 1.3 metresRequires Level 70, 119 Str, 131 Dex+50% to Global Critical Strike Multiplier can roll a modifier that grants Socketed Gems are supported by Level 18 Cast On Critical Strike if it has Shaper influence.
Various unique weapons are often used with CoC, such as Cospri's MaliceCospri's Malice Jewelled FoilOne Handed Sword Elemental Damage: (80-100) to (160-200) Critical Strike Chance: 5.50% Attacks per Second: (1.73-1.82) Weapon Range: 1.4 metresRequires Level 68, 212 Dex, 257 Int+25% to Global Critical Strike MultiplierTrigger a Socketed Cold Spell on Melee Critical Strike, with a 0.25 second Cooldown No Physical Damage Adds (80-100) to (160-200) Cold Damage Adds (40-60) to (90-110) Cold Damage to Spells (8-14)% increased Attack Speed +257 Intelligence Requirement 60% increased Critical Strike Chance against Chilled EnemiesBreathe deep, my child. Let the frigid air engulf your soul. Embrace the eternal cold, And it will embrace you back.. Some granted skills from weapons can replace the attack or spell of a CoC setup, such as Martyr of InnocenceMartyr of Innocence Highborn StaffStaff Physical Damage: 48-145 Elemental Damage: (315-360) to (450-540) Critical Strike Chance: 8.25% Attacks per Second: 1.15 Weapon Range: 1.3 metresRequires Level 52, 89 Str, 89 Int+22% Chance to BlockSpell Damage while wielding a StaffGrants Level 15 Battlemage's Cry Skill +(12-16)% Chance to BlockAttack Damage while wielding a Staff 100% increased Fire Damage Adds (315-360) to (450-540) Fire Damage Damage Penetrates 15% of Fire Resistance if you have Blocked Recently Immune to Freeze and Chill while Ignited BattlemageYou have been found guilty. Let the fires cleanse you of your sins.'s Vengeance, Ngamahu's FlameNgamahu's Flame Abyssal AxeTwo Handed Axe Physical Damage: (218.7-234.9) to (326.7-350.9) Critical Strike Chance: 5.00% Attacks per Second: (1.35-1.40) Weapon Range: 1.3 metresRequires Level 55, 128 Str, 60 Dex20% chance to Trigger Level 16 Molten Burst on Melee Hit (170-190)% increased Physical Damage (8-12)% increased Attack Speed 60% of Physical Damage Converted to Fire Damage Damage Penetrates 20% Fire Resistance"The Karui savages claim the weapon was forged by their fire god. I'm rather inclined to believe them." - Fairgraves, Renowned Explorer's Molten Burst, or The Whispering IceThe Whispering Ice Vile StaffWarstaff Physical Damage: 41-76 Critical Strike Chance: 7.50% Attacks per Second: 1.30 Weapon Range: 1.3 metresRequires Level 33, 59 Str, 59 Int+20% Chance to Block Attack Damage while wielding a Staff+1 to Level of Socketed Support Gems Grants Level 1 Icestorm Skill Plays Whispering Ice sound on killing a rare Monster (Hidden) (14-18)% increased Intelligence (8-12)% increased Cast Speed 1% increased Spell Damage per 10 IntelligenceGuard your darkest thoughts well, for they are the cracks through which the Nightmare crawls.'s Icestorm. Note that triggered attacks can trigger a CoC spell, but attempting to support a spell with a trigger condition with Cast on Crit will disable it due to exceeding the trigger limit.
Support gem synergy
While the attack skill is generally not scaled as a primary damage source, support gems modifying the spell can have synergistic effects with the attack. For example, a setup using 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.Supported Skills Chain +2 times Supported Skills deal (30-11)% less Damage with Hits
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% increased Chaining rangeThis 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 Skill Gem you wish to augment. Right click to remove from a socket. or Greater Multiple Projectiles SupportGreater Multiple Projectiles SupportSupport, Projectile Icon: P Level: (1-20) Cost & Reservation Multiplier: 150%Requires Level 38Supports projectile skills.Supported Skills deal (35-26)% less Projectile Damage Supported Skills fire 4 additional Projectiles
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% 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 Skill Gem you wish to augment. Right click to remove from a socket. with 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: (260-370)% Projectile Speed: 1040 AoE Radius: 9Unleashes a ball of fire towards a target which explodes, damaging nearby foes.Deals (9-1640) to (14-2460) Fire Damage 25% chance to Ignite enemies Base radius is (0.9-1.4) metres
Additional Effects From 1-20% Quality: Base radius is (0.01-0.2) metresPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. may prefer using projectiles like Tornado ShotTornado ShotAttack, Projectile, Bow Level: (1-20) Cost: (9-13) Mana Attack Speed: 80% of base Attack Damage: (100-120)% of base Effectiveness of Added Damage: (100-120)%Requires 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.Fires 3 secondary Projectiles
Additional Effects From 1-20% Quality: (2-40)% increased Projectile SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. or Kinetic BlastKinetic BlastAttack, Projectile, AoE Level: (1-20) Cost: (6-9) Mana Attack Speed: 115% of base Attack Damage: (140-155)% of base Effectiveness of Added Damage: (140-155)% AoE Radius: 14Requires Level 28Fires a projectile from a Wand that causes a series of area explosions in a secondary radius around its point of impact, each damaging enemies.Kinetic Blast creates 4 additional explosions Increases and Reductions to Spell Damage also apply to Attack Damage from this Skill at 200% of their value 35% less Area Damage Base explosion radius is 1.4 metres Base secondary radius is 2 metres
Additional Effects From 1-20% Quality: Kinetic Blast creates (0.05-1) additional explosionsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.. Alternatively, a setup using Increased Area of Effect SupportIncreased Area of Effect SupportSupport, AoE Icon: E Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 38Supports any skill with an area of effect.Supported Skills have (30-49)% increased Area of Effect
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% increased 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 Skill Gem you wish to augment. Right click to remove from a socket. with Ice NovaIce NovaSpell, AoE, Cold, Nova Level: (1-20) Cost: (8-23) Mana Cast Time: 0.70 sec Critical Strike Chance: 6.00% Effectiveness of Added Damage: (200-230)% AoE Radius: 30Requires Level 12A circle of ice expands from the caster.Deals (23-988) to (34-1481) Cold Damage Base radius is (2.6-3) metres
Additional Effects From 1-20% Quality: Base radius is (0.015-0.3) metresPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. may prefer using CycloneCycloneAttack, AoE, Movement, Channelling, Melee Level: (1-20) Cost: (2-3) Mana Attack Speed: 300% of base Attack Damage: (60-111)% of base Effectiveness of Added Damage: (60-111)% AoE Radius: 1.6Requires Level 28Channel this skill to move towards a targeted location while spinning constantly attacking enemies in an area around you. While channelling this skill, you cannot be knocked back.10% increased Area of Effect per 0.1 metre additional Melee Strike Range 30% less Movement Speed
Additional Effects From 1-20% Quality: (0.5-10)% more Movement SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..
Related modifiers
The following modifiers are related to Cast On Critical Strike Support:
The following unique items are related to Cast On Critical Strike Support:
Item
Base item
Stats
Forbidden ShakoForbidden Shako Great CrownArmour: (143-161) Energy Shield: (29-33)Requires Level 68, 59 Str, 59 IntSocketed Gems are Supported by Level (1-10) <random Support Gem> Socketed Gems are Supported by Level (25-35) <random Support Gem> +(25-30) to all AttributesThe Azmeri must never touch the Tears of Maji, lest Viridi weep.
Socketed Gems are Supported by Level (1-10) <random Support Gem> Socketed Gems are Supported by Level (25-35) <random Support Gem> +(25-30) to all Attributes
The Hungry LoopThe Hungry Loop Unset RingRequires Level 70Has 1 SocketConsumes Socketed Uncorrupted Support Gems when they reach Maximum Level Can Consume 4 Uncorrupted Support Gems Has not Consumed any Gems <Consumed support gem modifier>Be careful where you put your finger.
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: 120% Cooldown Time: 0.15 sec Can Store 1 Use(s)Requires 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 with a reservation cannot be triggered.Supported Melee Attacks will Trigger a Supported Spell on Kill Supported Spells have (20-39)% more Spell Damage
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% increased Attack Damage Supported Skills deal (0.5-10)% increased Spell 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 Skill Gem you wish to augment. Right click to remove from a socket., MjölnerMjölner GavelOne Handed Mace Physical Damage: (97.2-118.8) to (181.8-222.2) Critical Strike Chance: 5.00% Attacks per Second: 1.15 Weapon Range: 1.1 metresRequires Level 60, 412 Str, 300 Int15% reduced Enemy Stun ThresholdTrigger a Socketed Lightning Spell on Hit, with a 0.25 second Cooldown Socketed Lightning Spells have no Cost if Triggered +300 Intelligence Requirement +200 Strength Requirement (80-120)% increased Physical Damage Skills Chain +1 times (80-100)% increased Lightning DamageLook the storm in the eye and you will have its respect. and Cospri's MaliceCospri's Malice Jewelled FoilOne Handed Sword Elemental Damage: (80-100) to (160-200) Critical Strike Chance: 5.50% Attacks per Second: (1.73-1.82) Weapon Range: 1.4 metresRequires Level 68, 212 Dex, 257 Int+25% to Global Critical Strike MultiplierTrigger a Socketed Cold Spell on Melee Critical Strike, with a 0.25 second Cooldown No Physical Damage Adds (80-100) to (160-200) Cold Damage Adds (40-60) to (90-110) Cold Damage to Spells (8-14)% increased Attack Speed +257 Intelligence Requirement 60% increased Critical Strike Chance against Chilled EnemiesBreathe deep, my child. Let the frigid air engulf your soul. Embrace the eternal cold, And it will embrace you back., 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).