Champion Cause and Sanctification
A Champion that *must* take Unholy Sanctification cannot take a Cause marked Holy, if my reading of the Cause section is right.
Obviously I can just ask my GM about my idea but I just like to see if it's kosher RAW or not before I do.
(It's Grandeur for Ussharassim btw, I think it fits thematically for a poet Champion, if you twist it to selfish grandeur.)