Incinerate

IncinerateSpell, Fire, Channelling, AoE
Level: (1-20)
Cost: (2-4) Mana
Cast Time: 0.20 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 50%Requires Level 12Continuously launches a torrent of fire from your hand, repeatedly damaging enemies. As you channel this spell longer, the flames spread wider close to you and spread longer directly in front of you. When you stop channelling you release a wave of fire damage over a wide and long area that will apply a powerful Ignite.Deals (3-207) to (5-311) Fire Damage
25% more Damage with Hits and Ailments for each stage
100% increased angle per stage, up to 300%
Final wave always Ignites
8 maximum Stages
+(0.4-0.5) metres to radius per stage, up to a maximum of +(1.5-1.9) metres
Final wave deals 500% more Damage with Hits
Final wave deals 250% more Damage with Ignite

Additional Effects From 1-20% Quality:
+(0.1-2) to maximum StagesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop level: 12Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gems/SkillGemIncinerate

Incinerate is a channelling fire spell that launches a torrent of fire from the user, rapidly dealing fire damage. The longer the channel is held, the bigger the damage and area becomes. Releasing the channel launches a wave of fire that deals more hit and ignite damage, and has 100% ignite chance.

Skill functions and interactions

• On each channelling tick, Incinerate deals damage in an area. Every two channelling ticks, it gains a stage, with each stage granting more damage with hits and ailments, a wider spread, and additional range in the targeted direction. All stages are immediately lost when the player stops channelling.
• The final wave is created when the channel ends after gaining at least one stage. It benefits from all stage modifiers (damage, spread, radius).

• Spell Totem Support: Totems that use Incinerate will release their channel upon reaching maximum stages, or when the enemy they're targeting dies.

Gem level progression

Level			Mana Cost	Fire Damage	Radius per stage	Maximum Radius	Exp.	Total Exp.
1	12	33	2	3 to 5	0.4m	1.5m	0	0
2	15	39	2	4 to 6	0.4m	1.5m	15249	15249
3	19	48	2	6 to 9	0.4m	1.5m	41517	56766
4	23	56	2	8 to 12	0.4m	1.5m	81983	138749
5	27	64	2	11 to 17	0.4m	1.6m	147968	286717
6	31	73	2	15 to 23	0.4m	1.6m	250557	537274
7	35	81	3	20 to 30	0.4m	1.6m	405086	942360
8	38	88	3	25 to 38	0.4m	1.6m	447718	1390078
9	41	94	3	31 to 46	0.5m	1.7m	615318	2005396
10	44	100	3	38 to 57	0.5m	1.7m	834639	2840035
11	47	106	3	47 to 70	0.5m	1.7m	1570760	4410795
12	50	113	3	57 to 86	0.5m	1.7m	1633987	6044782
13	53	119	4	70 to 104	0.5m	1.8m	2151030	8195812
14	56	125	4	85 to 127	0.5m	1.8m	2812189	11008001
15	59	132	4	103 to 154	0.5m	1.8m	5099360	16107361
16	62	138	4	125 to 187	0.5m	1.8m	9400731	25508092
17	64	142	4	142 to 213	0.5m	1.9m	15273366	40781458
18	66	146	4	161 to 242	0.5m	1.9m	26286582	67068040
19	68	151	4	183 to 274	0.5m	1.9m	62890590	129958630
20	70	155	4	207 to 311	0.5m	1.9m	212046017	342004647
21	72	159	4	235 to 352	0.5m	2m	—	—
22	74	—	5	266 to 399	0.5m	2m	—	—
23	76	—	5	301 to 451	0.5m	2m	—	—
24	78	—	5	340 to 510	0.5m	2m	—	—
25	80	—	5	384 to 577	0.6m	2.1m	—	—
26	82	—	5	434 to 651	0.6m	2.1m	—	—
27	84	—	5	490 to 736	0.6m	2.1m	—	—
28	86	—	5	554 to 830	0.6m	2.1m	—	—
29	88	—	5	625 to 937	0.6m	2.2m	—	—
30	90	—	5	704 to 1057	0.6m	2.2m	—	—
31	91	—	5	748 to 1122	0.6m	2.2m	—	—
32	92	—	5	794 to 1191	0.6m	2.2m	—	—
33	93	—	5	843 to 1265	0.6m	2.3m	—	—
34	94	—	5	895 to 1343	0.6m	2.3m	—	—
35	95	—	6	950 to 1425	0.6m	2.3m	—	—
36	96	—	6	1008 to 1512	0.6m	2.3m	—	—
37	97	—	6	1070 to 1605	0.6m	2.4m	—	—
38	98	—	6	1136 to 1703	0.6m	2.4m	—	—
39	99	—	6	1205 to 1807	0.6m	2.4m	—	—
40	100	—	6	1278 to 1917	0.6m	2.4m	—	—

Item acquisition

Incinerate can drop anywhere.

Recipes

Incinerate can be created from the following recipes:

Amount	Part	Description	Meta
13	The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.	Random corrupted level 21 Spell gem	A
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	A
3	Gemcutter's PromiseGemcutter's Promise3Gem 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 gem with 20% quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.	Random gem with 1–20% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

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

Basic Mathematical Modelling

Comparison of Incinerate DPS for ramp-and-release compared to sustained channeling by number of stages.

The following calculation aims towards characters that have a critical strike chance of either 0% or a critical strike multiplier that is strictly 100% (e.g. for characters with the keystones Resolute Technique or Elemental Overload allocated). It can be easily extended to account for critical hits which can be implemented as a multiplicative factor to the skills average base damage.

The additional damage from ignite is assumed to be negligible. Characters that specialise in burning damage are aiming towards the largest ignite damage possible and always want to release at maximum stage if possible.

Under these assumptions, one can calculate the average base damage dealt per second while channeling at n stages as

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}{\begin{aligned}{\text{DMG}}_{avg}={\frac {{\text{DMG}}_{min}+{\text{DMG}}_{max}}{2}}\end{aligned}}$

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}{\begin{aligned}{\text{DPS(n)}}={\frac {{\text{DMG}}_{avg}}{\text{CastTime}}}\left(1+n\cdot 0.25\right)\end{aligned}}$

The average damage dealt while ramping to n stages is

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}{\begin{aligned}{\text{RampUpDPS}}&={\frac {1}{n+1}}{\frac {{\text{DMG}}_{avg}}{\text{CastTime}}}\sum _{k=0}^{n}\left(1+k\cdot 0.25\right)\\&={\frac {{\text{DMG}}_{avg}}{\text{CastTime}}}\left(1+{\frac {n\cdot 0.25}{2}}\right)\end{aligned}}$

Similarly, the average damage dealt by the final wave after channeling to n stages (2n casts) and releasing can be calculated to be

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}{\begin{aligned}{\text{ReleaseDPS}}&={\frac {6\cdot {\text{DMG}}_{avg}}{2n\cdot {\text{CastTime}}}}\left(1+n\cdot 0.25\right)\\&={\frac {{\text{DMG}}_{avg}}{\text{CastTime}}}\left(0.75+{\frac {3}{n}}\right)\end{aligned}}$

for the average ramp-up DPS when building stages. To calculate the average damage dealt by repeatedly releasing at maximum stages, we have to sum the latter two formulas as follows

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}{\begin{aligned}{\text{FinalDPSContinuedReleasing}}&={\text{RampUpDPS}}+{\text{ReleaseDPS}}\\&={\frac {{\text{DMG}}_{avg}}{\text{CastTime}}}\left(1.75+{\frac {n}{8}}+{\frac {3}{n}}\right)\end{aligned}}$

Thus the average dps multiplier of channeling to 10 stages and releasing will be ${\textstyle \color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}1.75+{\frac {10}{8}}+{\frac {3}{10}}}$ = 3.3, while the average dps multiplier of sustained channeling at 10 stages (disregarding ramp-up and final wave damage) is ${\textstyle \color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}1+{\frac {10}{4}}}$ = 3.5.

Related helmet enchantments

The following helmet enchantments affect Incinerate.

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 Incinerate Area Of Effect 1	66	Merciless Labyrinth	Incinerate has 16% increased Area of Effect	helmet 100
Enchantment Incinerate Area Of Effect 2	75	Eternal Labyrinth	Incinerate has 24% increased Area of Effect	helmet 100
Enchantment Incinerate Damage 1	66	Merciless Labyrinth	25% increased Incinerate Damage	helmet 100
Enchantment Incinerate Damage 2	75	Eternal Labyrinth	40% increased Incinerate Damage	helmet 100
Enchantment Incinerate Damage Per Stage 1	66	Merciless Labyrinth	16% increased Incinerate Damage	helmet 0
Enchantment Incinerate Damage Per Stage 2	75	Eternal Labyrinth	24% increased Incinerate Damage	helmet 0
Enchantment Incinerate Damage Per Stage 3	75	Eternal Labyrinth	10% increased Incinerate Damage for each stage	helmet 100
Enchantment Incinerate Maximum Stages 1	66	Merciless Labyrinth	Incinerate has +1 to maximum stages	helmet 100
Enchantment Incinerate Maximum Stages 2	75	Eternal Labyrinth	Incinerate has +2 to maximum stages	helmet 100
Enchantment Incinerate Projectile Speed 1	66	Merciless Labyrinth	20% increased Incinerate Damage	helmet 0
Enchantment Incinerate Projectile Speed 2	75	Eternal Labyrinth	30% increased Incinerate Damage	helmet 0

Alternate skill effects

Incinerate has the following alternate skill effects:

Item	Description
Blue Flame Incinerate EffectBlue Flame Incinerate EffectSkill Gem EffectYour Incinerate becomes a ghostly blue flame.	Your Incinerate becomes a ghostly blue flame.
Direblade Incinerate EffectDireblade Incinerate EffectSkill Gem EffectYour Incinerate becomes a Direblade Effect.	Your Incinerate becomes a Direblade Effect.

Version history

Version	Changes
3.23.0	Quality now provides +0-2 to maximum Stages, instead of 0-20% increased Fire Damage.
3.17.0	Incinerate now deals 3 to 5 Fire Damage at gem level 1 (unchanged), up to 207 to 311 at gem level 20 (previously 140 to 210). Now has 50% Effectiveness of Added Damage at all gem levels (previously 30%).
3.16.0	Incinerate now has “Final wave deals 250% more Damage with Ignite” (previously 500%). Because of base Ignite damage changes, Ignite with the skill is now 45.8% higher.
3.11.0	The visual effects have been improved.
3.6.0	Mana Cost at gem level 1 is now 2 (was 3). Mana Cost at gem level 20 is now 4 (was 5). Now gains radius and radius per stage as the gem levels, up to +5 radius per stage (from +4) and +19 radius at max stages at gem level 20 (from +15). Now deals 3 to 5 Fire damage at gem level 1 (unchanged) and 140 to 210 Fire damage at level 20 (from 129 to 194
3.3.0	Now deals area-of-effect damage in a cone in front of the caster while channelling, dealing 25% more damage with hits and ailments for each stage. The angle of the cone increases by up to 300% while channelling. When the channeling ends, a final wave is released which deals 500% more damage with hits and Ignite. This final wave always ignites. Now increases fire damage by 1% per 1% quality on the skill gem (previously increased projectile speed by 2% per 1% quality).
2.4.0	Added a channelled skill system. Incinerate, FlameblastFlameblastSpell, AoE, Fire, Channelling Level: (1-20) Cost: (4-7) Mana Cast Time: 0.20 sec Critical Strike Chance: 5.00% Effectiveness of Added Damage: 90%Requires Level 28Channels to build up a large explosion, which is released when you stop using the skill. The longer you channel, the larger the area of effect and damage of the explosion.Deals (31-405) to (46-608) Fire Damage 50% chance to Ignite enemies 165% more Spell Damage for each stage 60% more Damage with Ailments for each stage 10 maximum Stages +0.3 metres to radius per Stage Additional Effects From 1-20% Quality: +(0.05-1) to maximum StagesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and WitherWitherSpell, AoE, Duration, Chaos, Channelling Level: (1-20) Cost: (3-9) Mana Cast Time: 0.28 secRequires Level 10Casts a debilitating debuff on enemies in an area, hindering their movement and also inflicts the Withered debuff, which increases the Chaos Damage they take and can stack up to 15 times.Withered lasts 2 seconds Base duration is 0.50 seconds (0-19)% increased Area of Effect (30-36)% reduced Movement Speed 6% increased Chaos Damage taken Additional Effects From 1-20% Quality: (1-20)% increased Skill Effect DurationPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. are now channelled skills. Unlike other skills, which are used once and quickly finish, when you use a channelled skill, it doesn't finish until you release the relevant button/key. You continue performing the same skill. You need to pay mana repeatedly to keep the skill going. The channelled skill's mana cost must be paid again to maintain it with a frequency determined by the cast time. If you can't pay, the skill will end, just as if you'd lifted the button. Dying, being stunned, and other game mechanics that interrupt the use of skills will cause channelling to end as well. Effects which trigger when you use a skill will only trigger when you initially start channelling - regardless of how long you maintain a channelled skill, it's still the same use of the skill. You need to stop channelling if you want to use it again.
2.1.0	No longer affected by Spell Echo, as was intended in 2.0.0. Incinerate now only adds 50% more damage for each stage, down from 100% more damage. Incinerate's damage has been increased by 15% at level 1 and reduced by approximately 8% at level 20.
2.0.0	Damage increased by approximately 100% to compensate for the shotgunning mechanic change. Base Cast Speed has been increased from a cast time of 240ms to 200ms.
1.0.4	Now has a cast time of 240 milliseconds instead of 160. Damage has been increased by 77% per cast and damage effectiveness for supports has been adjusted from 20% to 30%. The number of stacks required to progress through a stage has been reduced to four casts.
0.11.4	Incinerate now has an informational icon which displays what stage it is in when you continue to cast it.
0.11.3	Now progresses through the damage stages faster and does more damage at later stages. The mana cost has been reduced at higher skill levels.
0.11.1	Spells with Damage Effectiveness no longer have their own damage affected by Damage Effectiveness. Damage values on these skills have been updated to reflect this.
0.10.5	Mana cost progression has been reduced—higher levels cost less mana to use.
0.10.3	Increased the damage by 12.5%.
0.10.2	Incinerate has been added to the game.