From Pathfinder Kingmaker, which isn't enabled.

Phantasmagoric Fog Trap

HAZARD 6

Stealth +15 (expert)

Description Cloying violet mist billows from the undergrowth, filling the heads of any creatures inside with maddening visions of dark moonless nights, twisted malignant trees, and steaming rivers of blood.

Disable DC 28 Survival (expert) to find a path through the Grand Hall that doesn't disturb the undergrowth

Blow Mists (mental)

Trigger A creature moves through the undergrowth

Effect One round later, the hall fills with violet fog that imposes a -2 circumstance penalty to Perception checks to all creatures within it and exposes anyone who enters it to phantasmagoric fog.

Effect: Phantasmagoric Fog

Phantasmagoric Fog (inhaled, poison)

Saving Throw DC 24 Will

Maximum Duration 6 rounds

Stage 1 Stupefied 1 (1 round)

Stage 2 Confused and stupefied 1 (1 round)

Stage 3 confused and Stupefied 2 (1 round).

Pathfinder KingmakerOGL