Sessile Spirit

Necromancy
Level: Cleric */Oracle * 5, Inquisitor * 4, Shaman * 4, Warlock * 5
Components: V, S
Casting Time: 1 Standard Action
Range: medium (100 ft. + 10 ft./level)
Target: one creature or object (see text)
Duration: 1 round/level (D)
Saving Throw: Will negates (harmless)
Spell Resistance: yes
  You reach into the target creature and cause that spirits within to become dormant and inactive. If the target is a medium with a spirit inhabiting its body or a spiritualist with a phantom inhabiting its consciousness (or a member of another class using the spirit or phantom class features), a failed save renders that spirit or phantom powerless, suppressing any benefits the spirit or phantom normally provides to its host, including bonus feats and spells known. If a spirit within the target is a creature using a possession effect, including possess Object, possession, or a ghost's malevolence, the spell targets the possessing creature rather than the creature it inhabits. On a failed save, the possessing spirit isn't exorcised from the target but is Dazed for the duration of the spell.