Possession

The power to take control and inhabit the body of an individual with one's own mind.

Ability
The possessor is not aware of the possessed subject’s thoughts, but is in control of their motor functions and brain. The subject becomes unconcious. The possessor simply overrides the subject’s consciousness for their own use.

The possessor is in a psychic trance from where they stand. Very hard to master, the subject’s unconscious mind may fight back.

Usages

 * Temporarily inhabit the body of the target.
 * Control a person's action.
 * The user's mind/spirit/soul can leave his/her body freely.
 * When the user possesses a body s/he gains the skills and powers of the body.
 * Can possess a body which can be useful for espionage.

Variations

 * Astral Possession
 * The power in which one may as a spirit invade and control another’s mind.

Anime/Manga

 * The Yamanaka Clan from Naruto can perform this.
 * Orochimaru can Possess a person permannently for 3 years gaining their powers and abilities.
 * Onewa (Bionicle), through his Kanohi, could control others' minds, but he couldn't make them do anything against their personal morals
 * The DC comic book hero deadman gained this power after he died, given to him by a mystical deity to help him find his killer.
 * The Secret Apprentice II (Star Wars : the Force Unleashed II)

Books

 * Aura Triton (Daughters of the Moon)

T.V. and Films

 * Angels and Demons
 * Ghosts
 * Ectonurites (Ben 10)
 * Danny Phantom and orther various ghosts (Danny Phantom)

Video Games

 * Cryptosporidium and possibly other Furons (Destroy All Humans)
 * John Raimi (Geist)
 * Ganondorf (legend Of Zelda)
 * Banshee (WarCraft III)