You are covered in thorns that cause damage to each unarmed creature that attacks you in melee.
Benefit: Any creature striking you with its body or a natural weapon deals normal damage, but at the same time the attacker takes 1d3 points of piercing damage. Any creature involved in a grapple with you automatically takes this damage once per round at the beginning of your turn.
Section 15: Copyright Notice – Remarkable Races
Remarkable Races. Copyright 2009, Alluria Publishing; Author: J. Matthew Kubisz