From Pathfinder Society Quest #9: Wayfinder Origins, which isn't enabled.

Grasping Limbs (5-6)

COMPLEX HAZARD 3

Stealth +10 (trained); DC 23 Perception (expert) to notice the construct limbs at the bottom of the pit.

Description The limbs of smashed constructs line the bottom of the fissure, beneath the water. They desperately grab anything that gets too close.

Disable DC 21 Thievery (trained) or Engineering Lore or Azlant Lore twice to immobilize the limbs, or Deception twice to trick the limbs into grasping each other.

AC 19; Fort +12, Ref +6

Hardness 10, HP 44 (BT 22); Immunities precision, critical hits

Grasp

Trigger A creature falls into the water

Effect The smashed constructs at the bottom of the water try to Grapple the triggering creature (Athletics +12). The trap rolls initiative.

Routine (2 actions) The grasping limbs try to Grapple all creatures in the water (Athletics +12). They then tighten around all creatures they have grabbed or restrained, dealing 2d8 bludgeoning damage (DC 20 basic Fortitude).

Pathfinder Society Quest #9: Wayfinder OriginsOGL