pf2e.fyi
From Pathfinder #162: Ruins of the Radiant Siege, which isn't enabled.

Blackfinger's Prayer

HAZARD 19
Stealth +30 (legendary)
Description The trapdoor's metal is infused with a deadly toxin that seeps out when the trap is triggered.

Disable DC 50 Thievery (legendary) to gum up the trapdoor's porous metal surface, DC 45 Crafting (master) to render the toxin inert, or Dispel Magic (9th rank; counteract DC 45) to counteract the trap's magic

AC 40; Fort +38, Ref +30
Hardness 30, HP 150 (BT 75)

Blackfinger's Prayer (curse, divine)
Trigger A creature opens the door without first whispering the name Blackfingers

Effect The metal trapdoor emits toxic vapors. Each creature within 30 feet must save against a potent strain of Blackfinger Blight.
Blackfinger Blight (inhaled, poison, virulent)

Each round, at the beginning of their turn, a creature affected by blackfinger blight must succeed at a DC 5 flat check check or drop one random item they're holding

Saving Throw DC 40 Fortitude
Onset 1 round
Maximum Duration 6 rounds
Stage 1 6d6 poison damage (1 round)
Stage 2 8d6 poison damage (1 round)
Stage 3 10d6 poison damage and Confused (1 round)
Pathfinder #162: Ruins of the Radiant SiegeOGL