Benefits: This is a combat feat that scales with your Base Attack Bonus. * +0: You gain a number of extra attacks of opportunity each round equal to your Dexterity Bonus (if positive). * +1: Whenever you drop an opponent with a melee attack, you are entitled to a bonus "cleave" attack against another opponent you threaten. You may not take a 5' step or otherwise move before taking this bonus attack. This Cleave attack is considered an attack of opportunity. * +6: You may take a bonus 5' step every time you are entitled to a Cleave attack, which you may take either before or after the attack. * +11: You may generate an aura of fear on any opponents within 10' of yourself whenever you drop an opponent in melee. The save DC is 10 + the Hit Dice of the dropped creature. * +16