Flask of Oil

Where to find it

Decrepit HarvesterDrop1 of 1 kill1 player

Harvest ReaperDrop

Harvest GolemDrop

Rusty Harvest GolemDrop

Black SlimeDrop

Harvest WatcherDrop

Black OozeDrop

Crimson OozeDrop

Venture Co. Machine SmithDrop

Venture Co. EngineerDrop

Monstrous OozeDrop

Venture Co. OverseerDrop

Foe Reaper 4000Drop

Goblin CraftsmanDrop

SludginnDrop

Engineer WhirleygigDrop

Boss CopperplugDrop