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).
Some knights of oaths work to powerful ends, taking any means they can. Once per day, a knight of oaths with this boon can extract what she needs from an intelligent Chaotic creature,
Life's Enforcer (Su).
Hand of the Queen (Su).
The knight of oaths acts on behalf of a very powerful element, and thereby deserves the respect of those she meets. Once per day, a knight of oaths with this boon can impose her will on an intelligent Lawful creature, automatically succeeding at a Diplomacy check related to her current mission. This leaves the target with a sense of satisfaction at having chosen the right path for their values.
Hero of the Nation (Ex).