Herald of Ash

Herald of AshSpell, AoE, Fire, Herald, Duration
Radius: 10
Mana Reserved: 25%
Can store 1 use(s)
Cooldown Time: 1.00 sec
Cast Time: 1.00 secRequires Level 16Grants a buff providing fire damage based on your physical damage. While you have this buff, if you kill an enemy with an attack, 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).Per 1% Quality:
0.75% increased Fire DamageGain 15% of your Physical Damage as Extra Fire Damage
Base duration is 4 seconds
(0-38)% more Burning DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Level: 16Purchase Costs

Normal

1x Orb of Alteration

Sell Price
1x Scroll Fragment

Not to be confused with Herald of Ashes.

Herald of Ash is a self-cast buff that reserves mana to increase damage output. See also Herald of IceHerald of IceCast, AoE, Cold, Herald
Mana Reserved: 25%
Can store 1 use(s)
Cooldown Time: 1.00 sec
Cast Time: 1.00 sec
Damage Effectiveness: 80%Requires Level 16Channel ice through your hands, adding cold damage to spells and attacks. If you shatter an enemy, they explode and deal AoE cold damage to enemies near them.Per 1% Quality:
0.75% increased Cold DamageAdds (4-38) to (5-56) Cold Damage to Spells
Adds (4-38) to (5-56) Cold Damage to Attacks
Deals (18-308) to (26-462) Cold Damage
Damage cannot be ReflectedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and Herald of ThunderHerald of ThunderCast, AoE, Duration, Lightning, Herald
Radius: 32
Mana Reserved: 25%
Can store 1 use(s)
Cooldown Time: 1.00 sec
Cast Time: 1.00 sec
Damage Effectiveness: 120%Requires Level 16Channel lightning through your hands, adding lightning damage to spells and attacks. If you kill a shocked enemy, lightning bolts will strike enemies around you for a short duration.Per 1% Quality:
0.75% increased Lightning DamageAdds (2-19) to (7-76) Lightning Damage to Spells
Adds (2-19) to (7-76) Lightning Damage to Attacks
Deals (1-27) to (34-1303) Lightning Damage
Base duration is 6 seconds
Cannot apply ShockPlace 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 by an attack (but not a spell), 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.

• Support gems: Any support gems (with the exception of Enhance SupportEnhance SupportSupport
  Icon: +
  Mana Multiplier: 115%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.Per 1% Quality:
  This Gem gains 5% increased Experience+(0-16)% to Quality of Supported Active Skill GemsThis 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.) 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: RRequires Level 31Supports any skill that can kill enemies.Per 1% Quality:
  0.5% increased Rarity of Items Dropped by Enemies Slain from Supported Skills(40-59)% 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 Active 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 SupportSupport
  Icon: U
  Mana Multiplier: 130%Requires Level 38Supports any skill that hits enemies.Per 1% Quality:
  Supported Skills deal 0.5% increased Physical DamageSupported Skills deal (40-59)% more Physical Damage
  Supported Skills deal no Elemental Damage
  Supported Skills deal no Chaos 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.: 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%	49,725	49,725
3	24	37	25	4%	95,714	145,439
4	28	42	29	6%	169,595	315,034
5	31	46	32	8%	199,345	514,379
6	34	50	35	10%	285,815	800,194
7	37	54	37	12%	401,344	1,201,538
8	40	58	40	14%	554,379	1,755,917
9	43	62	43	16%	755,049	2,510,966
10	46	66	46	18%	1,016,533	3,527,499
11	49	70	48	20%	1,898,602	5,426,101
12	52	74	51	22%	1,964,019	7,390,120
13	55	78	54	24%	2,573,731	9,963,851
14	58	82	57	26%	4,676,439	14,640,290
15	60	84	59	28%	3,017,327	17,657,617
16	62	87	60	30%	7,823,001	25,480,618
17	64	90	62	32%	15,264,208	40,744,826
18	66	92	64	34%	26,272,845	67,017,671
19	68	95	66	36%	62,872,274	129,889,945
20	70	98	68	38%	212,023,122	341,913,067
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

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

The video is outdated. Please note that Reduced Mana SupportReduced Mana SupportSupport
Icon: rRequires Level 31Supports any skill with a mana cost. Does not support skills that reserve mana.Per 1% Quality:
Supported Skills have 0.25% reduced Mana CostSupported Skills have (25-34)% 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 Active 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
Mana Multiplier: 110%Supports any skill that hits enemies, or could otherwise apply elemental ailments.Per 1% Quality:
0.5% increased Duration of Elemental Ailments on EnemiesElemental Ailments caused by Supported Skills spread to other enemies in a Radius of 10
20% chance to Freeze, Shock and Ignite
(0-19)% 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 Active Skill Gem you wish to augment. Right click to remove from a socket. no longer affects it.

Quest reward

This skill is given as quest reward for the following quests:

Class	Marauder	Templar	Witch	Shadow	Ranger	Duelist	Scion
Quest
Intruders in Black Act 2

Vendor reward

This skill can be bought at the listed npc vendors after completing the following quests:

Class	Marauder	Templar	Witch	Shadow	Ranger	Duelist	Scion
Quest
The Root of the Problem Act 2 Yeena
A Fixture of Fate Act 3 Siosa
Fallen from Grace Act 6 Lilly Roth

Alternate skill effects

Name	Cost	Description
Ghostflame Herald of Ash Ghostflame Herald of AshHerald of Ash Skin Stack Size: 20Your Herald of Ash becomes infused with ghostly fire.Right click this item then left click a Herald of Ash Gem to apply it.	80	Replaces the standard effect on a Herald of AshHerald of AshSpell, AoE, Fire, Herald, Duration Radius: 10 Mana Reserved: 25% Can store 1 use(s) Cooldown Time: 1.00 sec Cast Time: 1.00 secRequires Level 16Grants a buff providing fire damage based on your physical damage. While you have this buff, if you kill an enemy with an attack, 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).Per 1% Quality: 0.75% increased Fire DamageGain 15% of your Physical Damage as Extra Fire Damage Base duration is 4 seconds (0-38)% more Burning 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 Effect Gloom Herald EffectHerald Skin Stack Size: 20Your Herald of Ash, Thunder or Ice becomes a dark effect.Right click this item then left click a Herald of Ash, Herald of Thunder or Herald of Ice Gem to apply it.	125	Replaces the standard effect on a Herald skill gem with a dark effect. Preview

Related helmet enchantments

The following helmet enchantments affect Herald of Ash:

Name		Effect(s)
EnchantmentHeraldOfAshDamage1	66	25% increased Herald of Ash Damage
EnchantmentHeraldOfAshDamage2	75	40% increased Herald of Ash Damage
EnchantmentHeraldOfAshManaReservation1	66	20% reduced Herald of Ash Mana Reservation
EnchantmentHeraldOfAshManaReservation2	75	30% reduced Herald of Ash Mana Reservation

Version history

Version	Changes
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.