Valkyrie Honor

Try to mulligan for Hojan/Shen-Ra early game. Hojan with a Finest Hour/Copperhall Bracers/Revinvigorate can usually get you anywhere from 8-10 health from lifesteal to pull ahead in life long enough to get Sediti and Telut going.

Pristine Light can be used to play Sediti's overwhelm multiple times, Reclaim in the market for ramp or if you get power starved. Emergency Pristine Light as well. Roland/Svetya and Martyr's Chains are just there for fun. Once you get to the point you can play them, you probably don't need them and they can be swapped out.

Final note: Don't forget Marshall Ironthron's Ultimate once you hit 15 power. He can wipe the enemy board for a win. The name of this game is "Delay and Endure". The more turns you take, the closer your chances of winning mathematically approach 1. Weak to hyper aggro or mass removal decks.