Mighty Works Mastery I

(Oriental Adventures, page 80, DnD 3.0)

[General]

You have mastered the initial secrets of the "Mighty Works" martial arts style--a hard/soft form emphasizing locks and hand strikes.

Prerequisite

Improved Unarmed Strike, Improved Grapple, Stunning Fist (or monk's stunning attack), Choke Hold, Fists of Iron, Deflect Arrows

Benefit

When you make an attack or full attack action using an unarmed strike, you gain a +2 dodge bonus to your AC for that round.