pf2e.fyi
From Pathfinder Adventure Path: Gatewalkers, which isn't enabled.

Dream-Poisoned Door

HAZARD 12
MAGICALTRAP
Stealth +25 (master)
Description Eerie shapes manifest within the doorway as it's opened, conjuring a group of four Animate Dreams into being.
Disable DC 30 Occultism (expert) to concentrate on the eldritch energies and diffuse them through meditation, DC 35 Thievery (master) to scratch warding runes along the door's hinges and block dreams from manifesting, or Dispel Magic (6th rank; counteract DC 30) to counteract the trap
Manifest Dream Guardians (occult)
Trigger The door is opened
Effect A group of four Animate Dreams manifest in the area just beyond the door. These four animate dreams each appear as vaguely whale-shaped but human-sized masses of tendrils. They swim through the air and attack the intruders at once, fighting to the death and pursuing any who flee the temple.
Pathfinder Adventure Path: GatewalkersORC