Fetus

Fetus is a ranged Sewers and Caves enemy that lobs slime shots up to 2 tiles away and heals itself by drinking from adjacent water tiles. It usually starts combat already standing in water, giving it immediate access to its healing mechanic. Repeatedly attacking it can cause it to prioritize self-healing over fighting back, but sustained pressure from range can outpace its recovery. Luring it away from water greatly reduces its staying power.