Ghost

Fight! [5]
Enemies gain the Possession (Recharge 6,
Charisma DC 10 + CCRL) trait.
Possession
One Humanoid the creature can see makes a
Charisma saving throw. On a failure, the target
becomes possessed by the creature. While
possessing the creature can not be effected
unless targeted by an effect that turns undead.
Targets that succeed the save are immune to it.