azbaelus

Astaroth is renowned in a variety of mythologies, and all agree that he is powerful.  He is most often depicted as either a nude man or a “foul angel” riding a dragon, holding a serpent. 

http://en.wikipedia.org/wiki/Astaroth

In truth, he is the keeper of arcane secrets.  He drives mortals with the endless thirst for knowledge, often tempting them with mysterious tomes and grimoires, or the promise of hitherto unknown magic.  He, too, is in a relentless pursuit of knowledge, particularly anything having to do with magic.  He himself often researches new methods of casting, new recipes for scrolls and potions, and dabbles in creating magical items, often double-edged swords for the mortals whose hands they fall into.