Exactly Nivm. What my character-who shall now be known as "Micelus" (yay for originality!
) - wants from others is a little bit of respect, a little bit of love, and a pawn in regaining what was lost. In more obvious words, Micelus asks for favours for later in regaining his body from a demonlord or if that proves impossible, make or possess another body. Problem is, the skull needs to be in the body as it contains all the great power of creation and destruction.
Oh and the skull dosen't technically "eat". It does however require life force to continue floating around. The life force could be gathered from corpses or if none are available, still living organisms.
And the skull moves of its own will.
I would also like to note that Micelus has had other bodies before, but they always breakdown or die or just plain explode from the raw energies of the skull.
And Hastur, I know my guy seems OP but he's like a gun; powerful but still needs a gunman.
One more edit (I edit too much), if the user of my powers tries to do something that he has no knowledge of; such as trying to make a perfect sword with no knowledge in smithing (or smiting as it may be), it will go wrong and may just result in a crappy sword, or result in a sword given a mind, floating around, and trying to kill its creator.
and finally, HE DEMANDS RESPECT (don't piss off the floating skull of doom)