Editing Changeling: The Lost (section)

===Oaths===
For more serious agreements, Changelings rely on oaths. These require mutual consent to be sworn, and both parties will be permanently bound by the oath from that point forward. As long as both parties uphold their part of the oath, they will gain its benefits. 

While the terms of the oath can certainly be violated, this does not erase the oath so much as change its terms, which almost always involves grave penalties for the oathbreaker. (On the rare occasions that the penalty for violating the oath isn't specified in its terms, the Wyrd will punish the oathbreaker as it sees fit. And it is a vindictive little bitch about it.) On top of the immediate consequences, oathbreakers are reviled among Changelings and the only way to be forgiven is to make restitution to all parties involved, including the Wyrd itself. 

Yes, it is possible to end up bound to obey oaths that are mutually exclusive with each other. No, the penalties for breaking one oath to uphold another are not reduced, and if anything can actually be ''worse'' than usual; read up on Cu Chulainn to see how that can bite you in the ass. Moral of the story, don't make oaths that you might not be able to keep.