Shocksaw Trap CR 4
Type magic; Perception DC 20; Disable Device DC 20
Trigger sight (true seeing); Reset automatic
Effect whirling electrified circular saw blade on an articulated metal arm reaches out of a slot in a wall to strike at a target within a 15-foot reach (+10 melee, 2d6+3/19–20 damage plus 3d6 electricity damage)
Pathfinder Campaign Setting: Dungeons of Golarion. © 2011, Paizo Publishing, LLC. Authors: Jason Bulmahn, Matthew Goodall, Brandon Hodge, Anthony Pryor, and Mike Shel.