illusion mental 

Traditions arcane, occult

Cast 10 minutes (material, somatic, verbal)

Range planetary; Targets 1 creature you know by name

Saving Throw Will; Duration 1 day

You send disturbing nightmares to your target. The next time the target falls asleep, it must attempt a Will save. If you know the target only by name and have never met them, the target gets a +4 circumstance bonus to the Will save.

Critical Success The target suffers no adverse effects and is temporarily immune for 1 week.Success The target experiences the nightmares but suffers no adverse effects other than unpleasant memories.Failure The target experiences the nightmares and awakens fatigued.Critical Failure The target experiences the nightmares, awakens fatigued, and is drained 2 until it is no longer fatigued.

Core Rulebook, page 354.