Gwent: The Witcher Card Game
They say it can eat a whole man in armor down to the bone in less than a minute. I'd rather not find out if it's true.
Melee: Whenever you play an Insectoid, gain 1 Armor. Exposed: Destroy self.
( See this subject on The Witcher wiki: Kikimore worker
Gwent Update: Oct 02, 2019: Added.