Fists of Iron
( Sword and Fist: A Guidebook to Monks and Fighters, p. 6)[General]
You have learned the secrets of imbuing your unarmed attacks with extra force.
Prerequisite
Improved Unarmed Strike (PH) , Base attack bonus +2,
Benefit
Declare that you are using this feat before you make your attack roll (thus, a missed attack roll ruins the attempt). You deal an extra 1d4 points of damage when you make a successful unarmed attack. You may use this feat a number of times per day equal to 3 + your Wisdom modifier.