Combat Expertise

You can fight defensively, at the expense of accuracy.

Prerequisites: BCB +1, Dexterity 11, Intelligence 11

Benefit: When fighting in melee, you can take a penalty of up to -5 on your attack and add the same number as a dodge bonus to your AC. This number may not exceed your BCB. The bonus and penalty last until your next turn.

This bonus can only be gained using an attack action; the penalty applies to the original attack and any reaction attacks you make, but not Swift Attacks.

You can also use one more reaction each round. You can never have more reactions than your Dex bonus + 1.