Armor of Thorn and Claw
Razor-sharp thorns and claws erupt from your skin or scales. Whenever a creature touches you or hits you with a melee unarmed attack, it takes 1 piercing damage. Additionally, if you become Grabbed, Restrained, or otherwise held Immobilized in a creature's grasp, such as by being engulfed or swallowed, the creature takes scaling d4 persistent bleed damage.
Heightened (+2) The piercing damage increases by 2, and the persistent bleed damage increases by 1d4.
Traits
An action with this trait requires a degree of mental concentration and discipline.
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
Effects that slightly alter a creature's form have the morph trait. Any Strikes specifically granted by a morph effect are magical. You can be affected by multiple morph spells at once, but if you morph the same body part more than once, the second morph effect attempts to counteract the first (in the same manner as two polymorph effects, described in that trait). Your morph effects might also end if you are polymorphed and the polymorph effect invalidates or overrides your morph effect. The GM determines which morph effects can be used together and which can't.