You are trained at using your combat ability for defense as well as offense.

Prerequisite: Intelligence 13

Effect: When you use a Standard Action to make a melee attack, you can take a penalty of up to -5 on your attack roll and add the same number (Up to +5) as a dodge bonus to your Reflex Defense. This number may not exceed your Base Attack Bonus. The changes to attack rolls and Reflex Defense last until the start of your next turn.

Normal: A character without the Melee Defense Feat can Fight Defensively while using the attack action to take a -5 penalty on his attack roll and gain a +2 dodge bonus to his Reflex Defense.