From Pathfinder Dark Archive (Remastered), which isn't enabled.

Psi Catastrophe

FEAT 12

CONCENTRATE MINDSHIFT OCCULT PSYCHE PSYCHIC

Activity 2 actions

You stop holding your power back, unleashing it all in a catastrophic blast. All creatures in a 20-foot emanation take 1d6 bludgeoning damage per level with a basic Reflex. Your psyche subsides as your power is expended.

Pathfinder Dark Archive (Remastered)ORC