Any creature which has been trained specifically to fight alongside its handler, like an attack dog or equivalent. Generally speaking, in order to qualify as an attack animal the creature must: * Not act (or at least it must not be supposed to act) without explicit instructions from its handler beyond a normal routine. This usually entails something with animal level intelligence which can be trained to obey. Sapient creatures can count if they still fit this criteria (that is they're forced to obey, choosing to because of Undying Loyalty or because they're being paid isn't an example). * They must be acting at the command of their handler (it's not enough for someone to throw their victim into a cage full of lions, they have to be able to make the lions attack them). * The "crea