Memory:Air grue

You believed these nightmares only existed in four-legged styles... your beliefs are now shattered... From a cloak of dark, this winged horror looks not unlike a massive bat, but with long sharp nails and a mouthful of large jagged teeth... It makes surprisingly little sound for such a large creature, with only a strange gurgling sound being heard. A cloud of air, corrupted by the forces of chaos, inhabited by a malevolent spirit. It appears like a very small black raincloud, but you seem to hear strange voices muttering in it, and something inside you claims that this cloud is in fact made of teeth.