active

Decompose

Consume a Corpse to create a cloud of flammable Poisonous gas. Any Burning effects or Detonator skills will explode the gas cloud, creating a fiery explosion.

SpellAoEFireChaosDuration
Tier
A

Very solid choice with strong damage or utility for most builds.

Cost
mana
Cast Time
0.8s
Crit Chance
Max Level
20
Cooldown
None

Gem Effects

Poison Cloud

Limit 6 Poison Clouds

Poisons enemies as though dealing Chaos damage equal to 10% of Corpse's maximum Life

Gains +20% more Radius per second, up to a maximum of +80%

Cloud radius is 1.6 metres

Cloud duration is 4 seconds

Explosion

Critical Hit Chance: 8.00%

Cloud radius is 1.6 metres

Cloud duration is 4 seconds

Deals (11–352) to (17–529) Fire Damage

Requirements

Primary:intelligence
At Level 20:157 Intelligence

Best Support Gems for Decompose

Ranked by synergy — the game won't tell you which combo deals the most damage

How to Use Decompose Effectively

Practical tips you won't find on the tooltip

🌊

AoE Clearing

Invest in Area of Effect to cover more ground. Excellent for map clearing and handling packs efficiently.

🔥

Ignite Potential

Fire skills can inflict Ignite for sustained DoT. Invest in Ignite Duration and Fire DoT multiplier for maximum burn damage.

Duration Matters

Duration scaling extends effect uptime. Less recasting = more time dealing damage. Invest in skill duration passives.

📋

Attribute Planning

Requires 157 Int at max level. Plan your passive tree and gear to meet this — don't get stuck unable to level your main skill.

Alternatives to Decompose

Similar skills — which one fits your build better?

How to Get Decompose

Source
Uncut Skill Gem
Vendor
Gem vendor after quest
Max Level
20
Resource
mana

Use an Uncut Skill Gem to obtain Decompose. These drop from enemies or can be purchased from the gem vendor once unlocked through the campaign.