Caustic Polyp/Encounter

This monster has a very high chance to spawn in these areas:

• Wasteworks: Slimeway
• Wasteworks: Wild Path
• Blighted Compound:

Creeping Colony

Ravenous Warrens

• Wolver Den: Raving Rabids
• Lichenous Lair: Toxic Union
• Venom Fang Arena: Beastly Brawl
• Venom Fang Arena: Slimey Showdown
• Event Mission: Shroud of the Apocrea: The Grasping Plateau

It have a low chance to spawn in these areas:

• Candlestick Keep: Noxious Night

This monster can always be found in these areas:

• 2-2 Mission: The Phantom Mask: Creeping Cavern
• Dangerous Mission: Compound 42: Outer Facility