Grixis 4 Color Control

this deck is similar to patrick, the innovator, chapins grixis control deck that he used in worlds and gp orlando, but has some important changes with the release of dark ascension. this includes, but is not limited to, 2 maindeck garruk relentless, 2 evolving wilds, and 3 faithless looting. as such, the green splash is a little heavier in my build than in chapins deck. i selected the type to be tournament deck, but it should be noted that ive only used it at fnms, and a gpt (and back then, the deck did not have green). any suggestions?