Your practice of quick and clever strikes is so refined that it’s practically a blur.
Prerequisites: Base Attack Bonus of +5, Sneak Attack (4d6+), Sleight of Hand 5 ranks, Quick Draw.
As a full-round action, you can make a special Sneak Attack roll. During the attack, you can make a Sleight of Hand check in place of a Bluff check to feint your opponent as a free action. Upon a success, the target is flat-footed against you until the start of their next turn. Afterwards, you suffer a -4 penalty to AC for 1 round. You can use this feat once per day, plus an additional time per day for every 6 character levels you have.