Dream Poison (Su)

Prerequisites: Master tricks 

: The ninja can poison even the dreams of a target. When a target fails a saving throw against a poison attack made by the ninja, the ninja may choose to force the target to make a Will save (DC 10 + 1/2 ninja’s level + ninja’s Charisma modifier) or be wracked by horrific visions when it next sleeps. This effect is treated as a poison, in addition to being a mind-affecting illusion. This acts as if a nightmare spell is cast on the target when it next sleeps. (Since the creature has already failed its saving throw it does not receive an additional save when it next goes to sleep).