Wicked Thorns

Frequency once per day

Trigger You're hit with an unarmed Strike or a Strike with a non-reach melee weapon.

Several of your thorns break off and hook into your attacker's body. You deal 1d8 piercing damage to the triggering creature. It attempts a basic Reflex save against the higher of your class DC or spell DC. On a critical failure, the creature also takes 1d4 persistent bleed damage as your thorns embed in its flesh.

At 3rd level, and every 2 levels thereafter, this damage increases by 1d8, and the persistent piercing damage increases by 1.