I really like this deck as it has a lot of options. Vs. ww, you have chain reaction for board wipe, and the sphinx with shroud for a finisher. Vs. eldrazi you have chain reaction and grixis charms. Vs. vampires, you have enough kill spells to keep them under control. And vs Jund, you have flashfreeze, deathmark, and should be able to keep board control to win.