Decarabia

The demon Decarabia (aka Carabia) is a fallen angel. He's a marquis in hell with 30 legions of demons reporting to him. Decarabia appears as a star in a pentacle but changes into a man when ordered to do so. He makes magical birds fly before a magician and leaves them as familiars, singing and eating as ordinary birds do. Decarabia knows the virtues of herbs and precious stones. Decarabia's most important duties are related to herbs and precious stones. It's said that he is capable of instructing sorcerers in the arts of astral and dream shapeshifting, and in how one may transform into a flying creature.