Poison Kills reverse adoptions

These creatures are made of poison of which they use on their enemies and make no mistakes about it they die. either by accident or another means but they will die. you must be careful how you handle these creatures they don't play, they don't make jokes they don't laugh. They are not cute and they are not cuddly. The only sound an enemy hears just before they attack his one single low long hiss, if you hear that, it's too late.