The power to have multiple souls in a single body.
User has two or more sentient souls in his body. Each soul has a personality and the control of the body is shared among the souls.
- May be limited to having only one soul controlling the body at a time.
See Also: Many Spirits Inside Of One.
Upon his initial creation, Coldstone (Gargoyles) possessed the souls of the three gargoyles who's remains composed his body: Othello, Iago, and Desdemona.
After Voldemort failed to kill him in his infancy, Harry Potter (Harry Potter series) not only possessed his own soul, but was also used as a vessel for a fragment of Voldemort's soul.
Being a living horcrux, Nagini (Harry Potter series) housed both her own soul as well as a fragment of Lord Voldemort's soul.
Ermac (Mortal Kombat) is composed of legions of dead souls.
Amphis (Valkyrie Crusade) is the fierce one of the two dragon maiden twins who share the same body, the other being Baena.
Baena (Valkyrie Crusade) is the homicidal one of the two dragon maiden twins who share the same body, the other being Amphis.
A shade (Inheritance Cycle) like Durza houses many evil spirits inside their body.
The Golden Tyrant/Judas Iscariot (Seikon no Qwaser) combined his soul with the souls of his fellow Apostles...
and placed them into an archangel shaped golem of gold.