Gasoline

Gasoline is a returning item in Risk of Rain 2.

Killing an enemy applies Damage over Time (DoT) to all nearby enemies. This DoT deals 0.25 times your character's base damage per tick, and ticks twice a second. Having more stacks of gasoline increases the duration of the burn and the radius of the blast. This item is almost identical in functionality to Will-o'-the-wisp, though it doesn't deal flat damage.

This item is useful to grab as any character, though it is often overshadowed by more powerful items.