Puff Up

You take a deep breath and rapidly puff up your body, jabbing your spurred scales and ridges into your attacker. You deal 1d6 piercing damage to the triggering creature (basic Reflex save using your class DC or spell DC, whichever is higher). On a critical failure, the creature is additionally thrown off by your sudden transformation, becoming off-guard until the end of your next turn. At 3rd level and every 2 levels thereafter, this damage increases by 1d6.