The Kitsune may abandon her physical form to take over that of another. It is the most famous, and most infamous power the Nine-Tails wield. Humans across Asia rightly fear it. This Gift is taught by lesser Incarna of Luna or one of Fox's brood, if at all.
The Fox must be in contact with the victim, the victim's hair or nail cuttings, or a personal token of extreme importance to the victim (wedding ring, favorite toy, etc.). She burns a Gnosis point to assume a completely spirit form, then a Willpower point to overcome the host, then the player rolls Manipulation + Occult (difficulty of the target's Willpower). S/ien can resist at this point (and once a day from then on) with Stamina + Occult (difficulty of the Kitsune's Willpower). Humans - with the assistance of priests, sages, witch doctors, hedge mages, shen, friends keeping vigil - can resist the intruder once a week with straight Stamina (difficulty of the Kitsune's Willpower). The Gift: Exorcism can be used to counter Possession. If successfully exorcised, the Kitsune returns to her physical form.