Aim (aka Aym or Haborym) is a Great Duke of Hell, very strong, and rules over twenty-six legions of demons. He sets cities, castles and great places on fire, makes men witty in all ways, and gives true answers concerning private matters.
He is depicted as a man with three heads, one of a serpent, the second of a man (to some authors with two stars on his forehead), and the third of a cat, although some say of a calf, riding a viper, and carrying in his hand a lit firebrand with which he sets the requested things on fire.
I like Haborym better, personally. Seriously.
Keeps good company, I see.
But he looks like a nasty sort of creature. Even if he didn’t light everything on fire.