From Pathfinder #186: Ghost King's Rage, which isn't enabled.

Psychic Wave

HAZARD 21

Stealth +43 (legendary)

Description A wave of psychic energy ripples through the room, violently prying into the minds of creatures in the area and alerting Kemnebi to the presence of intruders.

Disable DC 50 Arcana (legendary) to stymie the psychic energy before it manifests

Psychic Assault (arcane, mental)

Trigger A creature has been in the room for more than 1 round

Effect A wave of psychic energy slams into the minds of creatures in the chamber, dealing 8d10+48 mental damage (DC 44 basic Will). On a failed save, a creature is also Stunned 3.

Reset 1 hour.

Pathfinder #186: Ghost King's RageOGL