GREATER UNARMED STRIKE
Type: Combat, Improved Unarmed Strike, Tier 1.
Prerequisites: Strength or Dexterity.
Benefits: Your unarmed strike, as well as any other natural weapons you possess, increase their damage die to 1d6 (if normally smaller) and are treated as masterwork for the purposes of attacks you make with them. This grants these weapons a +1 enhancement bonus to attack rolls that doesn't stack with any actual magical enhancement. Any harmless effects that can affect manufactured weapons can affect your natural weapons, including your unarmed strikes, as if they were manufactured weapons that are merely attached to you (such as magic weapon).