At 2nd level and every even level thereafter, a knight of oaths gains a knight's boon, chosen from the list below.
Arm of Steel and Honour (Ex).
The knight of oaths is greatly practiced with certain forms of enforcement. Whenever she makes a readied attack, if her target is not casting a spell, she gains a +2 braid bonus to her attack roll.
Life's Enforcer (Su).
Hand of the Queen (Su).
The knight of oaths is extremely authoritative, working on behalf of great powers. Lawful creatures are normally friendly with her (or otherwise 1 step more friendly up to friendly), and she can take 10 on Diplomacy and Intimidate checks with lawful creatures.
Hero of the Nation (Ex).