IMPROVED MARTIAL ARTS [Combat, Martial]

     You are more skilled at unarmed attacks due to your improved training.

Prerequisite: Martial Arts, BAB +4

Benefit: A Medium-sized character deals 1d6 points of damage with unarmed attacks.  Strength modifiers apply.  Also, you can threaten a critical hit on a natural roll of 19 or 20.

     Small characters deal 1d4 points of damage, and Large characters deal 1d8 points of damage with an unarmed strike and this feat.