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Oil Grenade

Fire a bouncing Grenade that bursts in a spray of Oil when the fuse expires or when it impacts an Enemy, dealing minimal damage but covering the ground and nearby enemies in Oil. Oil created this way can be Ignited by Detonator Skills or Ignited Ground.

AttackAoEProjectileGrenadeFireDuration
Tier
A

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

Cost
9 mana
Cast Time
1s
Crit Chance
Max Level
20
Cooldown
None

Gem Effects

Detonation Time is 1.6 seconds

Damage and Oil spray radius is (2-2.6) metres

Oil Duration is 6 seconds

Oil Slows enemy movement speed by 40%

Oil applies Exposure, lowering Total

Elemental Resistances by 20%

Requirements

Weapons:Crossbow
At Level 20:86 Strength86 Dexterity

Best Support Gems for Oil Grenade

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

How to Use Oil Grenade 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.

🏹

Projectile Scaling

Extra projectiles (GMP) and Pierce/Chain/Fork dramatically multiply your clear. Choose based on mob density.

🔥

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.

Alternatives to Oil Grenade

Similar skills — which one fits your build better?

How to Get Oil Grenade

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

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