You have studied techniques designed to pierce magical protections.

Benefit(s): Once per day, you can attempt a melee touch attack against an opponent that you believe has a deflection bonus to AC. If your attack is successful, your foe's deflection bonus to AC is halved (to a minimum of +0) for a number of rounds equal to your Charisma modifier. You can use this ability twice per day at 10th level and three times per day at 20th level.