From Pathfinder Society Scenario #3-14: The Tomb Between Worlds, which isn't enabled.

Cleansing Cascade

HAZARD 7

Stealth +17 (expert)

Description The ritual power in this room, corrupted by necromantic energy, slams purifying water into all "unclean" creatures that try to leave.

Disable DC 25 Religion (expert) to ceremonially purify everyone in the room, by pouring water from a tub over their hands, or Dispel Magic (4th rank; counteract DC 25) to counteract the corrupted ritual magic.

Purifying Blast

Trigger A living creature steps out of the room.

Effect Water sprays out of the tubs. Every creature in the room or within 10 feet of the doors takes 4d10+18 bludgeoning damage (DC 27 basic Reflex save) and the water casts 4th-rank Dispel Magic with a counteract modifier of +15 against the highest-rank spell active on each target (or all spells on a target that critically fails its Reflex save).

Reset 1 minute

Pathfinder Society Scenario #3-14: The Tomb Between WorldsOGL