Initially settled on Naya due to my strong white cards and Rith, but ended up splashing black as well due to the fact that some of those good white cards were dependent on black kickers.

Started the night with an Automatic Librarian, Griffin Protector, and Captain's Call instead of the two Phyrexian Warhorses and the second Prayer of Binding. I brought in the Magnigoth Sentry and the second Prayer against an opponent with multiple powerful flyers. They also ran Phyrexian Warhorse which proved quite good, so I decided after that match to swap out my weakest white cards and the Librarian for the Warhorses and Prayer, also going down a plains for a second swamp.