throw in a cabal ritual :D
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I already took it out :P
I'd run day of judgment and divine reckoning. Combined with knight exemplar, you have an clear field through which to attack.
Your deck falls to black sun's zenith and anything with protection from white. I'd hardly call that the "Right" way
Good work, although I'd highly recommend running Khalni Hydra and/or any of the Eldrazi titans to give you something to spend all that mana on. Also, running Elvish archdruid would be invaluable.