Personal Divinity/Demon

Personal Demon
These demons form a body outside of their target/host, manifesting powerful spell work and growing in power as they draw it through their hosts/obsessions/focus. They are usually descended from a thought, action, craving or concept that their progenitor denied, externalized or overcame.

Physically they are inspired/formed from the imagination, longings and repressions of their progenitor.

Not to be confused with Unicorns although some resemble them.