You are able to transform one of your hands into a large crab claw. As an action, you can use the claw to try to grapple a creature. It is also a natural weapon, which you can use to make an unarmed strike. If you hit with it, the target takes bludgeoning damage equal to 1d6 + your Strength modifier, instead of the bludgeoning damage normal for an unarmed strike. Immediately after hitting, you can try to grapple the target as a bonus action. Your claw can’t precisely manipulate anything and can’t wield weapons, magic items, or other specialized equipment.