Even while putting all your efforts towards defense, you are able to parry and counter one of your opponents’ attacks.
Benefit: Once per round while you are taking a total defense action, you can elect to parry an attack directed at you or an adjacent ally as if you had elected not to take one of your attacks. The parry uses your normal attack bonus. If the parry is successful, you may attempt a riposte with a -4 penalty to the attack roll. You still cannot make other attacks of opportunity.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.