The moment the ritual is finished, the caster binds a simple spirit into a dead body, which controls the body and performs simple commands. The movements are slow, and since only normal movements are available to it, the body should be chosen prudently beforehand. A doll or corpse can walk, a ball can roll but cannot climb stairs, for example.
The caster can take direct control of the body as if he were inside it. However, this costs 1 arcana per Power*5 minutes, and any damage the body suffers, the caster's body suffers as well.
The spell ends after one hour.