Infernal Blow

Infernal Blow is a melee attack skill that converts 60% of Physical Damage to Fire Damage, applying a special debuff to enemies. When the debuff reaches six charges, expires, or the enemy affected by the debuff dies, it releases an explosion that deals fire damage to nearby enemies. This skill requires a sword, axe, mace, staff or unarmed.

Skill functions and interactions

Damage conversion: Like all converted damage, the fire portion of Infernal Blow's damage will be modified by both fire damage increases and physical damage increases.

Duration: If the debuff caused by Infernal Blow is still active when the monster dies, it will explode even if Infernal Blow was not the killing blow. That makes this skill very effective with Melee Splash or Ancestral Cry.

Debuffs: When the attack made with Infernal Blow hits an enemy, it applies two debuffs: the first debuff can stack up to six times and creates an explosion that deals damage based on your weapon damage when it reaches full charges or when it expires. The second debuff causes the enemy to create an explosion that deals damage scaling with its maximum life when it dies.

Explosion: The corpse explosion deals fire secondary damage in an area and cannot be reflected. It is neither an attack nor a spell, so in particular it is not affected by modifiers to melee damage, weapon damage or spell damage, but is affected by Elemental Damage with Attack Skills. While in a party, the explosion ignores the increased life added for each player beyond the first and treats the monster's life as if you were solo.

The charged debuff explosion deals the exact same damage types as the melee hit, plus area damage. Ruthless Blows are calculated differently depending on how the charged debuff explosion was caused. If the debuff reaches 6 stacks, then the hit that applied the 6th stack determines whether or not the explosion is Ruthless. If the debuff expires for any other reason (such as the monster dying) then the hit that applied the 1st stack determines whether or not the explosion is Ruthless.

Monster Types: Magic (blue named) and rare (yellow named) monsters, and unique monsters (orange named) can be exploded.

Area of effect modifiers will only apply to the explosion itself, not the melee attack.

Gem level progression

Level			Damage Effectiveness	Attack Damage	Fire Damage	Range	Exp.	Total Exp.
1	12	33	104%	103.9%	5 to 8	N/A	0	0
2	15	39	105%	105.4%	7 to 10	N/A	15249	15249
3	19	48	107%	106.9%	8 to 13	N/A	41517	56766
4	23	56	108%	108.5%	11 to 16	N/A	81983	138749
5	27	64	110%	110%	13 to 19	N/A	147968	286717
6	31	73	112%	111.5%	16 to 24	N/A	250557	537274
7	35	81	113%	113.1%	19 to 28	1	405086	942360
8	38	88	115%	114.6%	22 to 32	1	447718	1390078
9	41	94	116%	116.1%	25 to 37	1	615318	2005396
10	44	100	118%	117.7%	28 to 42	1	834639	2840035
11	47	106	119%	119.2%	32 to 47	1	1570760	4410795
12	50	113	121%	120.7%	36 to 54	1	1633987	6044782
13	53	119	122%	122.3%	40 to 60	1	2151030	8195812
14	56	125	124%	123.8%	45 to 68	2	2812189	11008001
15	59	132	125%	125.3%	51 to 76	2	5099360	16107361
16	62	138	127%	126.9%	56 to 85	2	9400731	25508092
17	64	142	128%	128.4%	61 to 91	2	15273366	40781458
18	66	146	130%	129.9%	65 to 98	2	26286582	67068040
19	68	151	131%	131.5%	70 to 105	2	62890590	129958630
20	70	155	133%	133%	75 to 113	2	212046017	342004647
21	72	159	135%	134.5%	81 to 122	3	N/A	N/A
22	74	N/A	136%	136.1%	87 to 130	3	N/A	N/A
23	76	N/A	138%	137.6%	93 to 140	3	N/A	N/A
24	78	N/A	139%	139.1%	100 to 150	3	N/A	N/A
25	80	N/A	141%	140.7%	107 to 160	3	N/A	N/A
26	82	N/A	142%	142.2%	114 to 172	3	N/A	N/A
27	84	N/A	144%	143.7%	123 to 184	3	N/A	N/A
28	86	N/A	145%	145.3%	131 to 197	4	N/A	N/A
29	88	N/A	147%	146.8%	140 to 210	4	N/A	N/A
30	90	N/A	148%	148.3%	150 to 224	4	N/A	N/A
31	91	N/A	149%	149.1%	155 to 232	4	N/A	N/A
32	92	N/A	150%	149.9%	160 to 240	4	N/A	N/A
33	93	N/A	151%	150.6%	165 to 248	4	N/A	N/A
34	94	N/A	151%	151.4%	171 to 256	4	N/A	N/A
35	95	N/A	152%	152.2%	176 to 265	5	N/A	N/A
36	96	N/A	153%	152.9%	182 to 273	5	N/A	N/A
37	97	N/A	154%	153.7%	188 to 282	5	N/A	N/A
38	98	N/A	154%	154.5%	194 to 292	5	N/A	N/A
39	99	N/A	155%	155.2%	201 to 301	5	N/A	N/A
40	100	N/A	156%	156%	207 to 311	5	N/A	N/A

Related helmet enchantments

The following helmet enchantments affect Infernal Blow.

Version history

Version	Changes
3.11.0	Now converts 60% of Physical Damage to Fire Damage (from 50%).
3.7.0	Now deals base damage equal to, and has an added damage effectiveness of, 104% at gem level 1 (from 100%), up to 133% at gem level 20 (from 123%). Now adds 5 to 8 fire damage to attacks at gem level 1, up to 75 to 113 at gem level 20.
3.3.0	Previously placed a debuff for 0.5 seconds on enemies hit by the skill. If the targed died while the debuff was active, it exploded, dealing fire damage equal to 10% of its maximum life to other nearby enemies. Now places a debuff for 0.8 seconds. Repeated hits refresh the duration of the debuff and add another stack. If the target dies while debuffed, it explodes, dealing 6% of the monster's base maximum life to nearby enemies, plus 66% of base attack damage per debuff. At 6 stacks of the debuff, the target explodes for 66% of base attack damage per debuff and the debuffs are consumed. Monsters slain by this explosion will still explode, dealing damage based on its life. Now requires level 12. Now has an added damage effectiveness and base damage of 100% at gem level 1 (down from 130%), up to 123% at gem level 20 (down from 160%). Now grants additional melee range as it levels, up to +3 at gem level 20.
2.1.0	Attack skills that have their damage based on the wielded weapon have their mana costs fixed in place from level 1 onwards. Radius increased by 22%.
2.0.0	Base damage increased by 4% (from 125% to 130% of base damage). Now grants 0.5% increased area of effect radius per 1% of quality (was 1% per 1% quality). The explosion effect can no longer reflect damage to the player. The explosion damage has been reduced from 25% to 10% of monsters life.
1.3.0	The mana costs of , , and have been reduced.
1.0.0	The effect for Infernal Blow has been improved.
0.11.4	Fixed a bug where Infernal Blow could still apply to targets if the attack missed.
0.10.2	Infernal Blow's physical damage now increases by 4% per level rather than 3%.
0.10.0	Now has +25% damage effectiveness rather than +12% attack damage.
0.9.12	Now works with unarmed attacks.
0.9.11i	Fixed Infernal Blow so that it benefits from increased area of effect.
0.9.4c	Set the default critical strike chances of Infernal Blow (7%)
0.9.3g	Changed Infernal Blow to not have the damage scaled by mods that affect Spell Damage.
0.9.3c	Fixed a bug that caused damage bonuses to not appear on many weapon skills. Increased damage by raising its flat damage bonus from 10% to 12%.
0.9.3	The stats which convert damage from one type to another now calculate the damage in a way that takes into account your physical damage bonuses. Fixed a bug where Infernal Blow was able to explode an enemy several times.
0.9.2	Infernal Blow does more damage at higher levels than before.
0.8.6	Added new skill prototype: "Infernal Blow"