This brooch is crafted from vines and bark and covered with thorns that don't pierce the wearer. At the start of each of your turns while wearing it, you can deal 1d8 piercing damage to each creature that is grappling you. In addition, you deal 1d4 bonus piercing damage when you hit with an attack using your natural weapons.

Notes: Damage: Piercing, Damage: Piercing, Combat, Shapechanging, Warding, Necklace