From Pathfinder Battlecry!, which isn't enabled.

Iivlar's Deflection

FEAT 9

Activity reaction

Prerequisites keeper jotunborn heritage

Trigger You are struck by a critical hit that deals physical damage.

You're able to use the silk woven into your skin to deflect attacks, reducing the deadliness of grievous blows. Attempt a DC 17 flat check. If you are successful, the attack becomes a normal hit.

Pathfinder Battlecry!ORC