Parts of the mutant’s body are covered with prickly spines, which may be small, medium, or large. Roll 1d6 at character generation to determine the size. Small spines (1-2) inflict 1d4 damage, medium spines (3-4) inflict 1d6, and large spines (5-6) are capable of inflicting 1d8 damage. Any type can be removed and thrown as a dagger. With a little effort, the small spines are capable of being hidden beneath normal clothing, but the medium and large spines are virtually impossible to conceal because of their size.