Trapfinding
Perception Utility 6
As a trap harries your allies, you swiftly scan the area, picking out the most likely location of the hidden control panel.
Personal
Trigger: You find a trap with a Perception check
Effect: Until the end of the encounter, you can reroll Thievery checks to disable the trap. You must use the second result.
Trapfinding is an encounter power available to characters who are trained in perception at sixth level.[PH3:173]