stingray

Placid creature except when provoked. Tail ends in a sword/spear/sting that it uses to strike - wasp style - the heart of its enemies. Known for it's pin point accuracy, if the stinger reaches the heart, it tranforms into a fist and tears out the heart. Stingrays have a single use voice box that can only be used during this kill-shot (commonly in the form of a shrill scream) after which the stingray dies (like a bee).

Stingrays are gnarly.