From Pathfinder #206: Bring the House Down, which isn't enabled.

Skinclock

HAZARD 19

Stealth +40 (legendary)

Description Blood sprays from clock's straight razor hands, forming a large set of oversized blood red razors that slice out to hew at flesh and bone.

Disable DC 47 Thievery once on the clock's hands and once on its face to decouple both of the magical sensors in the trap from each other, or Dispel Magic (10th rank, counteract DC 39) to counteract the trap

Time to Bleed

Trigger An attempt to Pick the Lock on the Skinclock fails, or any attempt to Force Open the wall or to damage it occurs

Effect A pair of bloody straight razors form and then slash forward to scissor at the triggering creature. The blades attempt to Strike the triggering creature before they vanish.

Melee Skinclock Razors +40 (deadly d12, magical, reach 10), Damage 8d10+33 slashing plus 2d6 bleed

Reset The Skinclock resets automatically.

Pathfinder #206: Bring the House DownORC