Rock Catching

The creature (which must be of at least Large size) can catch Small, Medium, or Large rocks (or projectiles of similar shape). Once per round, a creature that would normally be hit by a rock can make a Reflex save to catch it as a free action. The DC is 15 for a Small rock, 20 for a Medium one, and 25 for a Large one. (If the projectile provides a magical bonus on attack rolls, the DC increases by that amount.) The creature must be aware of the attack in order to make a rock catching attempt.