Needs review
Source: Way of the Open Hand

Description: The intermediate student learns to disrupt the tempo of his own opponent's attacks by interrupting them with attacks of his own.

Prerequisites: Base Attack Bonus +2, Improved Unarmed Strike, Tasaii-do Novice

If you ready an unarmed attack against an opponent's attack, you may make an opposed attack roll. If your attack roll is higher than your attacker's, their attack automatically misses you.