Needs review
Source: Way of the Open Hand

Description: You are skilled at making your opponent believe you are going to do one thing and then doing another

Prerequisites: DEX 13, Improved Unarmed Strike, Sebun-do Novice, Sebun-do Intermediate, Heal (10 ranks)

Required for: Sebun-do Expert, Sebun-do Master

You may voluntarily impose a penalty on your unarmed damage roll against an opponent to gain an equal insight bonus on any trip or grapple attempts (both the attack rolls and ensuing opposed rolls) against that opponent within the next round. The penalty must be declared before the damage is rolled and cannot be greater than your base attack bonus. If the the penalty you declare is greater than the damage you roll, the bonus is reduced to the damage rolled.