I tried ryanvergel's version of this deck and I came 1st 5-0ing my tourney. The deck is really solid imo. The grass matchup as psychup2034 said is absolutely abysmal, I got lucky and did get a good start and he only had one pokemon and I just OHKO'ed it. Lucky me. But anyways, Thanks to ryanvergel for the Palkia G lvlX. lol
My matchups in the tourney were
Grass/Fire with Ninetales and Torrterra.
Galactic Deck (Toxicroak, Skunktank, Wevile (I can't spell it), Dialga g lvlX, Crobat)
Grass with Venomoth
T-Tar with Wevile, Darkrai, Claydol. Standard Build.
Dusknoir with Uxie and Azelf