Frostbolt

FrostboltSpell, Projectile, Cold
Level: (1-20)
Cost: (6-25) Mana
Cast Time: 0.75 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: (250-360)%
Projectile Speed: 375Fires a slow-moving projectile that pierces through enemies, dealing cold damage.Deals (9-1594) to (13-2392) Cold Damage
Projectiles Pierce all Targets

Additional Effects From 1-20% Quality:
Projectiles that have Pierced deal (1-20)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop level: 5Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gems/SkillGemFrostBolt

Frostbolt is a cold spell that fires a slow-moving projectile that pierces all targets.

Skill functions and interactions

• Ice Nova of FrostboltsIce Nova of FrostboltsSpell, AoE, Cold, Nova
  Level: (1-20)
  Cost: (8-23) Mana
  Cast Time: 0.70 sec
  Critical Strike Chance: 6.00%
  Effectiveness of Added Damage: 130%Requires Level 12A 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.Deals (14-590) to (20-885) Cold Damage
  25% less Area of Effect when Cast on Frostbolt
  Base radius is (2.6-3) metres
  Deals 50% more Damage with Hits and Ailments when cast on Frostbolt
  Can expand from up to 4 Frostbolt Projectiles
  
  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. and Vortex of ProjectionVortex of ProjectionSpell, AoE, Cold, Duration, Nova
  Level: (1-20)
  Cost: (13-25) Mana
  Cast Time: 0.75 sec
  Critical Strike Chance: 6.00%
  Effectiveness of Added Damage: (130-170)%Requires Level 28An icy blast explodes around the caster, dealing cold damage to enemies, and leaving behind a whirling vortex which deals cold damage over time and chills enemies caught in it. If the caster targets near their Frostbolt projectiles, it will explode from a number of those projectiles instead, destroying them.Deals (49-779) to (73-1169) Cold Damage
  Base duration is 1.50 seconds
  Deals (57.9-1158.1) Base Cold Damage per second
  Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
  50% more Area of Effect when Cast on Frostbolt
  Base radius is 2 metres
  50% more Damage when Cast on Frostbolt
  Base secondary radius is 2 metres
  Can explode from up to 5 Frostbolt Projectiles
  
  Additional Effects From 1-20% Quality:
  +(0.01-0.2) metres to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: These transfigured versions of skills allows them to be cast from a Frostbolt's location instead of the player's.

• Projectile speed: Frostbolt's total projectile distance traveled is not affected by changes to projectile speed (such as Faster Projectiles SupportFaster Projectiles SupportSupport, Projectile
  Icon: j
  Level: (1-20)
  Cost & Reservation Multiplier: 120%Requires Level 31Supports projectile skills.Supported Skills have (50-69)% increased Projectile Speed
  Supported Skills deal (20-29)% increased Projectile Damage
  
  Additional Effects From 1-20% Quality:
  Supported Skills have (0.5-10)% increased Projectile 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 Skill Gem you wish to augment. Right click to remove from a socket. or Slower Projectiles SupportSlower Projectiles SupportSupport, Projectile
  Icon: J
  Level: (1-20)
  Cost & Reservation Multiplier: 120%Requires Level 31Supports projectile skills.Supported Skills have (20-30)% less Projectile Speed
  Supported Skills deal (10-19)% more Projectile Damage
  
  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.).

• Fork and Chain: Frostbolt projectiles will always pierce, and therefore can never fork or chain.

Gem level progression

Level			Mana Cost	Damage Effectiveness	Cold Damage	Exp.	Total Exp.
1	1	0	6	250%	9 to 13	0	0
2	2	0	6	250%	10 to 15	70	70
3	4	16	7	260%	13 to 20	308	378
4	7	22	8	260%	18 to 27	1554	1932
5	11	31	9	270%	27 to 41	6667	8599
6	16	41	10	270%	42 to 64	26047	34646
7	20	50	11	280%	59 to 89	49725	84371
8	24	58	12	280%	81 to 121	95714	180085
9	28	67	13	290%	108 to 163	169595	349680
10	32	75	14	290%	144 to 216	283759	633439
11	36	83	15	300%	190 to 285	453996	1087435
12	40	92	16	310%	249 to 373	703128	1790563
13	44	100	18	310%	323 to 485	1061223	2851786
14	48	109	19	320%	418 to 627	2065870	4917656
15	52	117	20	330%	537 to 806	2507110	7424766
16	56	125	21	330%	688 to 1033	5798936	13223702
17	60	134	22	340%	879 to 1318	15083919	28307621
18	64	142	23	350%	1117 to 1676	27792735	56100356
19	67	148	24	350%	1336 to 2004	43869739	99970095
20	70	155	25	360%	1594 to 2392	242081556	342051651
21	72	159	25	360%	1793 to 2689	—	—
22	74	—	26	360%	2014 to 3022	—	—
23	76	—	26	360%	2262 to 3393	—	—
24	78	—	27	360%	2539 to 3809	—	—
25	80	—	27	360%	2849 to 4273	—	—
26	82	—	28	360%	3194 to 4791	—	—
27	84	—	28	360%	3580 to 5369	—	—
28	86	—	29	360%	4010 to 6015	—	—
29	88	—	30	360%	4490 to 6735	—	—
30	90	—	30	360%	5026 to 7538	—	—
31	91	—	30	360%	5316 to 7974	—	—
32	92	—	31	360%	5623 to 8434	—	—
33	93	—	31	360%	5947 to 8920	—	—
34	94	—	31	360%	6288 to 9433	—	—
35	95	—	31	360%	6649 to 9974	—	—
36	96	—	32	360%	7030 to 10545	—	—
37	97	—	32	360%	7432 to 11149	—	—
38	98	—	32	360%	7857 to 11785	—	—
39	99	—	33	360%	8305 to 12457	—	—
40	100	—	33	360%	8778 to 13166	—	—

Item acquisition

Frostbolt can drop anywhere.

Recipes

Frostbolt 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 corrupted level 21 Spell gem	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

Quest reward

This item is given as a quest reward for the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Enemy at the Gate Act 1

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Enemy at the Gate Act 1 Nessa
A Fixture of Fate Act 3 Siosa
Fallen from Grace Act 6 Lilly Roth

Threshold jewels

The following threshold jewels augment Frostbolt:

Note that the jewels may be drop disabled and can only be found in permanent leagues as legacy items.

Item	Limit	Radius	Stats	Drop enabled
Frozen TrailFrozen Trail Cobalt JewelLimited to: 2 Radius: Medium(7-10)% increased Projectile Damage With at least 40 Intelligence in Radius, Frostbolt Projectiles gain 40% increased Projectile Speed per second With at least 40 Intelligence in Radius, Frostbolt fires 2 additional ProjectilesThe Maraketh knew that a mountain path free of vegetation was cut by regular avalanches, and so the advancing Eternals were unwittingly drawn into a deathtrap.Place into an allocated jewel socket on the Passive Skill Tree. Right click to remove from the Socket.	2	Medium	(7-10)% increased Projectile Damage With at least 40 Intelligence in Radius, Frostbolt Projectiles gain 40% increased Projectile Speed per second With at least 40 Intelligence in Radius, Frostbolt fires 2 additional Projectiles

Related helmet enchantments

The following helmet enchantments affect Frostbolt.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

Name		Labyrinth	Stats	Spawn Weighting
Enchantment Frost Bolt Cast Speed 1	66	Merciless Labyrinth	10% increased Frostbolt Cast Speed	helmet 100
Enchantment Frost Bolt Cast Speed 2	75	Eternal Labyrinth	15% increased Frostbolt Cast Speed	helmet 100
Enchantment Frost Bolt Damage 1	66	Merciless Labyrinth	25% increased Frostbolt Damage	helmet 100
Enchantment Frost Bolt Damage 2	75	Eternal Labyrinth	40% increased Frostbolt Damage	helmet 100
Enchantment Frost Bolt Freeze Chance 1	66	Merciless Labyrinth	Frostbolt has +10% chance to Freeze	helmet 100
Enchantment Frost Bolt Freeze Chance 2	75	Eternal Labyrinth	Frostbolt has +15% chance to Freeze	helmet 100
Enchantment Vortex AoE On Frostbolt 1	66	Merciless Labyrinth	Vortex has 30% increased Area of Effect when Cast on Frostbolt	helmet 75
Enchantment Vortex AoE On Frostbolt 2	75	Eternal Labyrinth	Vortex has 45% increased Area of Effect when Cast on Frostbolt	helmet 75

Alternate skill effects

Frostbolt has the following alternate skill effects:

Item	Description
Black Hole Frostbolt EffectBlack Hole Frostbolt EffectSkill Gem EffectYour Frostbolt becomes a flying black hole.	Your Frostbolt becomes a flying black hole.

Version history

Version	Changes
3.25.0	Now has 250% Effectiveness of Added Damage at gem level 1, scaling up to 360% at gem level 20 (previously 360% at all gem levels). Quality now provides "Projectiles that have Pierced deal 0-20% more Damage" (previously 0-20% increased Cold Damage).
3.17.0	Frostbolt now deals 9 to 13 Cold Damage at gem level 1 (unchanged), up to 1594 to 2392 at gem level 20 (previously 972 to 1458). Now has 360% Effectiveness of Added Damage at all gem levels (previously 220%). Quality on the Anomalous Frostbolt Skill gem no longer provides 0-100% reduced Damage, or 0-20% chance to inflict Cold Exposure on Hit. Instead, it now provides "Gain 0-40% increased Projectile Speed per second".
3.11.0	Now has an added Damage effectiveness of 220% (from 160%). Fixed an instance crash related to Frostbolt.
3.6.0	Mana Cost at gem level 20 is now 25 (was 20). Now deals 9 to 13 Cold damage at gem level 1 (from 6 to 10) and 972 to 1458 Cold damage at gem level 20 (from 753 to 1129)
2.3.0	Introduced to the game.