Herald of Ash

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 Ice and Herald of Thunder.

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 ) 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 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.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Physical DamageSupported Attacks have 0.5% chance to cause BleedingSupported Skills Overwhelm 0.25% Physical Damage ReductionSupported Skills deal (25-39)% 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%	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

The video is outdated. Please note that no longer affect Mana Reservation as it used to. Herald of Ash applies Burning Damage instead of Ignite (an elemental ailment), consequently no longer affects it.

Alternate skill effects

Name	Cost	Description
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 Ash 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

Related helmet enchantments

The following helmet enchantments affect Herald of Ash.

Name		Stats	Spawn Weighting
Enchantment Herald Of Ash Damage 1	66	25% increased Herald of Ash Damage	helmet 100 default 0
Enchantment Herald Of Ash Damage 2	75	40% increased Herald of Ash Damage	helmet 100 default 0
Enchantment Herald Of Ash Mana Reservation 1	66	Herald of Ash has 20% reduced Mana Reservation	helmet 100 default 0
Enchantment Herald Of Ash Mana Reservation 2	75	Herald of Ash has 30% reduced Mana Reservation	helmet 100 default 0

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.