Infernal Blow

Infernal BlowAttack, AoE, Melee, Strike, Fire, Duration
Level: (1-20)
Cost: 6 Mana
Attack Damage: (103-133)% of base
Effectiveness of Added Damage: (104-133)%
Radius: 15Requires Level 12Attacks with your weapon, applying a charged debuff to enemies hit by your strike, and an uncharged debuff to any other enemies hit. Upon reaching 6 charges, expiring, or the enemy's death, the charged debuff is removed, and it deals damage to that and other nearby enemies. Enemies with either debuff explode when they die, damaging other nearby enemies. Damage from this explosion cannot be reflected. Requires a Sword, Axe, Mace, Sceptre, Staff or Unarmed.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of EffectExplosion has 1% chance to apply Uncharged Debuff on Hit3% increased Burning Damage
1% chance to Ignite enemies4% increased Skill Effect DurationDeals (103.9-133)% of Base Attack Damage
60% of Physical Damage Converted to Fire Damage
Base duration is 0.8 seconds
Explosion deals base Fire Damage equal to 6% of the corpse's Maximum Life
Debuff deals 66% of Damage per Charge
(5-75) to (8-113) Added Fire Damage
+(0-2) to Melee Strike RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Area level: 12Vendor Prices

Normal

1x Orb of Transmutation

Vendor Offer
1x Scroll FragmentMetadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemInfernalBlow

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

Item acquisition

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

Amount	Ingredient	General Notes	Type
8	Dying AnguishDying Anguish8Level 19 Gem Alternative Quality: +19%Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.	random level 19 gem with 19% alternative quality	Automatic
1	Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item Item drops after killing # monstersQuality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.	random superior gem	Automatic
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	Automatic
3	Gemcutter's PromiseGemcutter's Promise3Superior Gem 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 superior gem with 20% quality	Automatic
1	The VoidThe Void1Reach into the Void and claim your prize.	random divination card set exchange	Automatic

Quest reward

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

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
The Siren's Cadence 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 ↓
The Siren's Cadence Act 1 Nessa	✗	✗	✓	✓	✓	✓	✓
A Fixture of Fate Act 3 Siosa	✓
Fallen from Grace Act 6 Lilly Roth	✓

Related helmet enchantments

The following helmet enchantments affect Infernal Blow.

Name		Stats	Spawn Weighting
Enchantment Infernal Blow Damage 1	66	25% increased Infernal Blow Damage	helmet 75 default 0
Enchantment Infernal Blow Damage 2	75	40% increased Infernal Blow Damage	helmet 75 default 0
Enchantment Infernal Blow Increased Damage Per Stack 1	66	Infernal Blow Debuff deals an additional 3% of Damage per Charge	helmet 75 default 0
Enchantment Infernal Blow Increased Damage Per Stack 2	75	Infernal Blow Debuff deals an additional 5% of Damage per Charge	helmet 75 default 0
Enchantment Infernal Blow Physical Damage Percent To Add As Fire Damage 1	66	10% of Infernal Blow Physical Damage gained as Extra Fire Damage	helmet 75 default 0
Enchantment Infernal Blow Physical Damage Percent To Add As Fire Damage 2	75	15% of Infernal Blow Physical Damage gained as Extra Fire Damage	helmet 75 default 0
Enchantment Infernal Blow Area Of Effect 1	66	16% increased Infernal Blow Area of Effect	helmet 75 default 0
Enchantment Infernal Blow Area Of Effect 2	75	24% increased Infernal Blow Area of Effect	helmet 75 default 0

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 Elemental HitElemental HitAttack, Projectile, Melee, Strike, Fire, Cold, Lightning, AoE, Prismatic, Bow Level: (1-20) Cost: (7-11) Mana Radius: 10Requires Level 12Each attack with this skill will choose an element at random, and will only be able to deal damage of that element. If the attack hits an enemy, it will also deal damage in an area around them, with the radius being larger if that enemy is suffering from an ailment of the chosen element. It will avoid choosing the same element twice in a row.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Elemental Damage0.5% increased Area of Effect1% increased Effect of non-Damaging Ailments on Enemies(22-480) to (40-891) Added Fire Damage (18-392) to (33-729) Added Cold Damage (4-77) to (67-1465) Added Lightning Damage (30-49)% chance to Freeze, Shock and Ignite 10% more Damage per Elemental Ailment on the Enemy 80% more Area Radius against Enemies affected by an Ailment of the chosen Element Only Deals Damage of the chosen Element Deals no Damage of other Damage Types +(0-2) to Melee Strike RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., Glacial HammerGlacial HammerAttack, Melee, Strike, Cold Level: (1-20) Cost: 5 Mana Attack Damage: (165-215)% of base Effectiveness of Added Damage: (165-215)%Hits enemies, converting some of your physical damage to cold damage. If an enemy is frozen and is on less than one third life, they will shatter when hit by Glacial Hammer. If striking three times in a row, the third strike will freeze enemies more easily. Requires a Mace, Sceptre or Staff.Per 1% Quality:1Superior2Anomalous3Divergent2% increased Duration of Cold Ailments0.5% increased Attack Speed1% increased Area of EffectDeals (165-269)% of Base Attack Damage 60% of Physical Damage Converted to Cold Damage 25% chance to Freeze enemies 35% increased Duration of Cold Ailments (10-29)% increased Effect of Cold Ailments +(2-4) to Melee Strike Range Every third successive strike Freezes enemies as though dealing (200-390)% more Damage Adds (2-75) to (3-113) Cold Damage against Chilled EnemiesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., Infernal BlowInfernal BlowAttack, AoE, Melee, Strike, Fire, Duration Level: (1-20) Cost: 6 Mana Attack Damage: (103-133)% of base Effectiveness of Added Damage: (104-133)% Radius: 15Requires Level 12Attacks with your weapon, applying a charged debuff to enemies hit by your strike, and an uncharged debuff to any other enemies hit. Upon reaching 6 charges, expiring, or the enemy's death, the charged debuff is removed, and it deals damage to that and other nearby enemies. Enemies with either debuff explode when they die, damaging other nearby enemies. Damage from this explosion cannot be reflected. Requires a Sword, Axe, Mace, Sceptre, Staff or Unarmed.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of EffectExplosion has 1% chance to apply Uncharged Debuff on Hit3% increased Burning Damage 1% chance to Ignite enemies4% increased Skill Effect DurationDeals (103.9-133)% of Base Attack Damage 60% of Physical Damage Converted to Fire Damage Base duration is 0.8 seconds Explosion deals base Fire Damage equal to 6% of the corpse's Maximum Life Debuff deals 66% of Damage per Charge (5-75) to (8-113) Added Fire Damage +(0-2) to Melee Strike RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and Lightning StrikeLightning StrikeAttack, Projectile, Melee, Strike, Lightning Level: (1-20) Cost: 6 Mana Attack Damage: (135-225)% of base Effectiveness of Added Damage: (135-225)%Requires Level 12Infuses your melee weapon with electrical energies as you swing. In addition to converting some of your physical damage to lightning damage, the stored energy is released from the weapon as projectiles as you strike, flying out to hit farther-away enemies. The projectiles cannot miss if the melee attack hits a target.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Damage 1% increased Projectile SpeedProjectiles Pierce 0.1 additional TargetsFires 0.1 additional Projectiles1% of Physical Damage Converted to Lightning DamageDeals (135-225)% of Base Attack Damage 50% of Physical Damage Converted to Lightning Damage Fires (4-7) additional Projectiles (1-9) to (13-179) Added Lightning DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. 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"