Herald of Ash

Not to be confused with the unique monster, Herald of Ashes.

Herald of Ash is a self-cast buff that reserves mana to increase damage output. See also Herald of IceHerald of IceSpell, AoE, Cold, Herald
Level: (1-20)
Reservation: 25% Mana
Cooldown Time: 1.00 sec
Can Store 1 Use(s)
Cast Time: Instant
Effectiveness of Added Damage: 80%Requires Level 16Grants a buff adding cold damage to spells and attacks. If you shatter an enemy, this skill will cause them to explode and deal AoE cold damage to enemies near them. This damage is not affected by modifiers to spell damage.Deals (18-308) to (26-462) Cold Damage
Damage cannot be Reflected
Base radius is 1.2 metres
Buff grants (4-38) to (5-56) Added Attack Cold Damage
Buff grants (4-38) to (5-56) Added Spell Cold Damage

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. and Herald of ThunderHerald of ThunderSpell, AoE, Duration, Lightning, Herald
Level: (1-20)
Reservation: 25% Mana
Cooldown Time: 1.00 sec
Can Store 1 Use(s)
Cast Time: Instant
AoE Radius: 32Requires Level 16Grants a buff which adds lightning damage to spells and attacks. If you kill a shocked enemy, this skill will create a storm, causing lightning bolts to strike enemies around you for a duration. The damage inflicted by this skill is not affected by modifiers to spell damage.Deals (1-23) to (31-1108) Lightning Damage
Cannot inflict Shock
Base duration is 6.00 seconds
Storm Hits an Enemy every 0.25 Seconds
Creates a storm when you Kill a Shocked Enemy
Buff grants (2-19) to (7-76) Added Attack Lightning Damage
Buff grants (2-19) to (7-76) Added Spell Lightning Damage

Additional Effects From 1-20% Quality:
Storms Hit Enemies with (1-20)% increased FrequencyPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..

Skill functions and interactions

• Extra Fire Damage: This modifier adds fire damage to all non-damage-over-time sources, including those from spells, attacks, and traps. The amount added is equal to 15% of the damage source's physical damage.

• Burn on kill: While Herald of Ash is active, when an enemy is killed, enemies within a radius from the killed enemy are burned based on the overkill damage. Overkill damage refers to total excess damage of the killing hit, including non-fire damage. The burning damage is affected by increased Burning Damage and increased Damage Over Time. This damage cannot be reflected.

• Fire Damage: The increased Fire Damage from quality applies globally to all fire damage, including the extra fire damage effect of Herald of Ash.

• More Burning Damage: Despite the more Spell Fire Damage the more Burning Damage is not global. It only affects the burn created by itself.

• Support gems: Any support gems (with the exception of Enhance SupportEnhance SupportExceptional, Support
  Icon: +
  Level: (1-3)
  Cost & Reservation Multiplier: 120%Supports any skill gem. Once this gem reaches level 2 or above, will raise the quality of supported gems. Cannot support skills that don't come from gems.+(0-16)% to Quality of Supported Skill Gems
  
  Additional Effects From 1-20% Quality:
  This Gem gains (5-100)% increased ExperienceThis 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.) linked to the Herald of Ash will only affect the burn damage caused by overkill damage, not the extra fire damage from physical. For example, linking Item Rarity SupportItem Rarity SupportSupport
  Icon: R
  Level: (1-20)Requires Level 31Supports any skill that can kill enemies.(40-59)% increased Rarity of Items Dropped by Enemies Slain from Supported Skills
  
  Additional Effects From 1-20% Quality:
  (0.5-10)% increased Rarity of Items Dropped by Enemies Slain from Supported SkillsThis 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. to Herald of Ash will only apply rarity bonus to the enemies who die from the burn damage caused by Herald of Ash ignition.

• Area of Effect: Area of Effect modifiers from passives, items and gems affect the radius of the on-kill effect.

• Culling Strike: When using an attack with culling strike, the overkill effect will only apply if the damage from the killing hit would have taken the monster to less than 0 life.

• Brutality SupportBrutality SupportPhysical, Support
  Icon: U
  Level: (1-20)
  Cost & Reservation Multiplier: 140%Requires Level 38Supports any skill that deals damage.Supported Skills deal (25-39)% more Physical Damage
  Supported Skills deal no Chaos Damage
  Supported Skills deal no Elemental Damage
  
  Additional Effects From 1-20% Quality:
  Supported Skills deal (0.5-10)% increased Physical 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.: When linked to a skill affected by Herald of Ash, the extra fire damage will not apply, but the secondary overkill effect will.

Gem level progression

Level				more Burn Damage	Exp.	Total Exp.
1	16	26	18	N/A	0	0
2	20	31	22	2%	49725	49725
3	24	37	25	4%	95714	145439
4	28	42	29	6%	169595	315034
5	31	46	32	8%	199345	514379
6	34	50	35	10%	285815	800194
7	37	54	37	12%	401344	1201538
8	40	58	40	14%	554379	1755917
9	43	62	43	16%	755049	2510966
10	46	66	46	18%	1016533	3527499
11	49	70	48	20%	1898602	5426101
12	52	74	51	22%	1964019	7390120
13	55	78	54	24%	2573731	9963851
14	58	82	57	26%	4676439	14640290
15	60	84	59	28%	3017327	17657617
16	62	87	60	30%	7823001	25480618
17	64	90	62	32%	15264208	40744826
18	66	92	64	34%	26272845	67017671
19	68	95	66	36%	62872274	129889945
20	70	98	68	38%	212023122	341913067
21	72	100	70	40%	N/A	N/A
22	74	N/A	N/A	42%	N/A	N/A
23	76	N/A	N/A	44%	N/A	N/A
24	78	N/A	N/A	46%	N/A	N/A
25	80	N/A	N/A	48%	N/A	N/A
26	82	N/A	N/A	50%	N/A	N/A
27	84	N/A	N/A	52%	N/A	N/A
28	86	N/A	N/A	54%	N/A	N/A
29	88	N/A	N/A	56%	N/A	N/A
30	90	N/A	N/A	58%	N/A	N/A
31	91	N/A	N/A	59%	N/A	N/A
32	92	N/A	N/A	60%	N/A	N/A
33	93	N/A	N/A	61%	N/A	N/A
34	94	N/A	N/A	62%	N/A	N/A
35	95	N/A	N/A	63%	N/A	N/A
36	96	N/A	N/A	64%	N/A	N/A
37	97	N/A	N/A	65%	N/A	N/A
38	98	N/A	N/A	66%	N/A	N/A
39	99	N/A	N/A	67%	N/A	N/A
40	100	N/A	N/A	68%	N/A	N/A

Strategy

In the case where enemy death occurs uniformly at random with respect to damage dealt, the chance of an enemy dying from a particular hit is proportional to the damage the hit deals. The mean overkill damage for that hit is half the damage of the hit. This makes the mean overkill damage overall equal to

 0.5 * (mean damage2) / mean damage

Video

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The video is outdated. Please note that Inspiration SupportInspiration SupportCritical, Support
Icon: r
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 31Supports any skill. Minions, Totems, Traps and Mines cannot gain Inspiration Charges.Supported Skills have (25-34)% reduced Mana Cost
Gain an Inspiration Charge when you Spend Mana on Upfront
Costs or Effects of Supported Skills
Supported Skills have (6-8)% increased Critical Strike Chance per Inspiration Charge
Supported Skills deal (3-5)% more Elemental Damage per Inspiration Charge
Lose all Inspiration Charges after Spending a total of (122-800) Mana on Upfront Costs and Effects of Supported Skills

Additional Effects From 1-20% Quality:
Supported Skills have (0.25-5)% reduced Mana CostThis 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. no longer affect Mana Reservation as it used to. Herald of Ash applies Burning Damage instead of Ignite (an elemental ailment), consequently Elemental Proliferation SupportElemental Proliferation SupportCold, Fire, Lightning, Support, AoE
Icon: S
Level: (1-20)
Cost & Reservation Multiplier: 110%Supports any skill that hits enemies, or could otherwise apply elemental ailments.(0-19)% increased Duration of Elemental Ailments on Enemies
Elemental Ailments inflicted by Supported Skills spread to other enemies within (1.2-1.5) metres
Supported Skills have 20% chance to Freeze, Shock and Ignite

Additional Effects From 1-20% Quality:
(0.5-10)% increased Duration of Elemental Ailments on EnemiesThis 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. no longer affects it.

Alternate skill effects

Name	Cost	Description
Divine Herald EffectDivine Herald EffectSkill Gem EffectYour Herald of Ash, Thunder or Ice becomes a divine effect.	125	Replaces the standard effect on a Herald skill gem with a divine effect. Preview
Ghostflame Herald of AshGhostflame Herald of AshSkill Gem EffectYour Herald of Ash becomes infused with ghostly fire.	80	Replaces the standard effect on a Herald of AshHerald of AshSpell, AoE, Fire, Herald, Duration Level: (1-20) Reservation: 25% Mana Cooldown Time: 1.00 sec Can Store 1 Use(s) Cast Time: Instant AoE Radius: 10Requires Level 16Grants a buff providing fire damage based on your physical damage. While you have this buff, if you kill an enemy, other enemies near them will be burned based on the overkill damage. The burn inflicted by this skill can only be affected by modifiers to damage over time (burning damage is damage over time).Base duration is 4.00 seconds (0-38)% more Burning Damage Buff grants 15% of your Physical Damage as Extra Fire Damage Buff grants (9-12)% more Spell Fire Damage Base Burning Damage is 25% of Overkill Damage Additional Effects From 1-20% Quality: Base burning damage is an additional (0.25-5)% of Overkill DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. skill gem with ghostly green flames. Preview
Gloom Herald EffectGloom Herald EffectSkill Gem EffectYour Herald of Ash, Thunder or Ice becomes a dark effect.	125	Replaces the standard effect on a Herald skill gem with a dark effect. Preview
Gore Herald EffectGore Herald EffectSkill Gem EffectYour Herald of Ash, Thunder or Ice becomes a gory effect.	125	Replaces the standard effect on a Herald skill gem with a gory effect. Preview
Purple Herald EffectPurple Herald EffectSkill Gem EffectYour Herald of Ash, Thunder or Ice becomes a purple effect.	125	Replaces the standard effect on a Herald skill gem with a purple effect. Preview

Related helmet enchantments

The following helmet enchantments affect Herald of Ash.

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 Herald Of Ash Damage 1	66	Merciless Labyrinth	25% increased Herald of Ash Damage	helmet 100
Enchantment Herald Of Ash Damage 2	75	Eternal Labyrinth	40% increased Herald of Ash Damage	helmet 100
Enchantment Herald Of Ash Mana Reservation 1	66	Merciless Labyrinth	Herald of Ash has 40% increased Mana Reservation Efficiency	helmet 0
Enchantment Herald Of Ash Mana Reservation 2	75	Eternal Labyrinth	Herald of Ash has 60% increased Mana Reservation Efficiency	helmet 0
Enchantment Herald Of Ash Mana Reservation 1	66	Merciless Labyrinth	Herald of Ash has 50% increased Mana Reservation Efficiency	helmet 100
Enchantment Herald Of Ash Mana Reservation 2	75	Eternal Labyrinth	Herald of Ash has 75% increased Mana Reservation Efficiency	helmet 100

Version history

Version	Changes
3.2.0	Herald of Ash now also provides more Spell Fire Damage, and can trigger the overkill burn from spells.
3.0.0	Secondary effect no longer ignites. Instead, enemies near slain enemies are burned based on the overkill damage. Herald tag added.
2.0.0	Radius reduced by 16.5% (from 12 to 10) and base overkill damage reduced to 80% (from 100%).
1.2.0	Herald of Ash has been added to the game.