Select one Cavalier or Samurai Order. You gain the 2nd level Order Ability for the selected Order. For the purposes of using that power, treat your Cavalier or Samurai level as '. In addition, once per day you may issue a Challenge as the Cavalier class feature, applying your Order's Challenge ability, except that you deal extra damage equal to '. You do not gain any of the other Order Abilities. You must follow your Order's edicts. If you violate any of these edicts, you lose the benefits of this feat for 24 hours. The violation of an edict is subject to GM interpretation.
If you gain levels in a class that grants the Order class feature, you can immediately trade this feat for another Combat Feat you meet the prerequisites for.
Although you do not dedicate yourself fully to the duties and training of a knight, you have sworn a knight's oath and draw strength from the conviction of your edicts.