This prefab has a pit and a pit trap. Simple put the trigger on top of the area where you want the trap to be. You can modify the default trap script to make it require a higher reflex save DC, the waypoint it goes to (default is 'pit', which is in a pit are that comes in the prefab), etc. How it works: When a player enters the trigger, he must roll for a reflex save. If he rolls the DC or higher, he gets a message telling him he nearly fell in a pit trap. If he fails the save, he gets teleported to the pit.
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