Combustion Support

Combustion Support Combustion Support is a support gem.

Supports any skill that hits enemies.

Fire, Support. Level: 1–20. Cost & Reservation Multiplier: 130%. Requires Level 8.

  • Supported Skills deal (10–19)% more Fire Damage
  • Supported Skills have 25% chance to Ignite
  • Enemies Ignited by Supported Skills have -10% to Fire Resistance

This 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.

NameAdditional Effects From QualityWeight
Combustion SupportSupported Skills deal (0–10)% increased Fire Damage50

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Related Gems

Level Effect

LevelRequires LevelIntelligenceSupported Skills deal 10% more Fire DamageExperience
1818103,231
21021109,569
313251128,189
417311159,146
5213712111,192
6254312193,800
7294913320,280
8335513507,839
9376114554,379
10406614755,049
114370151,016,533
124675151,898,602
134979161,964,019
145284162,573,731
155588177,610,839
1658931713,436,884
1761971825,050,611
18641021843,867,388
196710619242,078,618
207011119
217220
227420
237621
247821
258022
268222
278423
288623
298824
309024
319124
329225
339325
349425
359525
369626
379726
389826
399926
4010027

Combustion is a support gem that grants supported skills that grants more fire damage and chance to ignite the enemy. Enemies ignited by the supported skill have reduced fire resistance.

Skill functions and interactions

Note that even though this skill 'Supports any skill that hits enemies', by default only fire damage can ignite. Therefore it by default only helps skills dealing fire damage, see more on ignite, including uniques that enable other elements to ignite. The fire damage could be supplied by gear or for minions for instance a jewel with 'Minions deal additional Fire Damage'.

The Chance to Ignite an enemy given by this gem is independent of the chance to ignite an enemy as a result of a critical strike. The overall probability that an enemy will be ignited is:

ChanceToIgnite=1-(1-SkillCritChance)*(1-SkillIgniteChance)

It is worth noting that as opposed to chance to critical strike, which is checked once for each cast of the skill, the chance to ignite is checked separately for each individual hit. For example, a hit from Consecrated Path linked with Combustion that hits two enemies at once could potentially ignite one enemy, but not the other.

The chance to Ignite from this gem will stack additively with chance to Ignite modifiers from other sources, such as from the Ash, Frost and Storm notable passive skill, or the stat of Firestorm.

The normal rules for burning apply, linking this gem to a skill that deals no fire damage is pointless; unless the user is igniting enemies via cold damage skills with The Three Dragons or Hrimburn, or via lightning damage using Stormfire.

Item acquisition

Combustion Support can drop anywhere. Drop level: 8.

Recipes

Combustion Support can be created from the following recipes:

Amount Part Description
9 Gift of the Gemling Queen Random level 20 support gem
7 Dialla's Subjugation Random corrupted support gem with 23% quality
6 The Fox Random level 20 gem
8 Dying Anguish Random level 19 gem with 19% alternative quality
8 The Hook Random corrupted level 21 gem with 23% alternative quality
3 Gemcutter's Promise Random gem with 20% quality
1 Gemcutter's Incubator Random gem with 1–20% quality
1 The Void Random divination card set exchange

Usage in recipes

Combustion Support is used in the following recipes:

Result Amount Part Notes
The Goddess Scorned 1 The Goddess Bound With 20% quality.
1 Elegant Sword Base type, with 20% quality and which has sockets that exactly match those on the Goddess Bound, number, color and links included.
1 Combustion Support With at least 1% quality.
1 Orb of Fusing N/A

Quest reward

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

Class → Witch Shadow Ranger Duelist Marauder Templar Scion
Quest ↓
The Caged Brute
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 Caged Brute
Act 1
Nessa
A Fixture of Fate
Act 3
Siosa
Fallen from Grace
Act 6
Lilly Roth

Path of Exile Gems