I was thinking that the main weaknesses to hit would be {F} (for all the {L} decks like Eelzone, ZPST, Zekrom EX, other Magnezone variants, etc.), {W} (for Reshiram, Reshiram EX, Emboar killings, etc.), and {P} (for Mewtwo EX variants).
So, I can up with an idea all on my little lonesome. :D...