Mercurial Strike
( Dragon Compendium)[Fighter Bonus Feat, General]
With a single motion, you draw your weapon and slash at an opponent.
Prerequisite
Quick Draw (PH) , Base attack bonus +5,
Benefit
Any time an opponent provokes an attack of opportunity from you but you are unarmed, you may draw a melee weapon and make your attack of opportunity with it. The target of your attack of opportunity is caught flat-footed for that attack.