When you dodge an attack of opportunity, you can confuse your would-be assailant.
Benefit: When an opponent makes an attack of opportunity against you and misses, you may cause the attacker to become confused for a number of rounds equal to your Charisma modifier (minimum 1). Your caster level for this effect is equal to your caster level. You may use this effect a number of times per day equal to your arcane trickster level.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.