@ luxraygarchomp
I would advise against playing either one, they're Cubone matchups are just awful. Admittedly I have yet to actually test this. Furthermore, having not played this game in over 14 years, I'm not entirely sure how much Cubone actually sees play in my meta (let alone yours).
In my opinion, the best play for your meta is hands down Regigas EX/Vileplume/Reuniclus/Leavany /Emboar/Archeops. While I have yet to write up a list for this deck, it is undefeated at theorymon so far. The strategy is elegant in its simplicity, yet unstoppable once it gets set up. If you can not win with this deck, you're obviously a terrible player, and would be better off not playing this game (on the other hand, if you can win with this deck [or any deck for that matter], you're obviously a terrible person, who needs to quit this game and get a life). That's how easy this deck theoretically is to use. Hypothetically, RVRLEA EX has perfect matchups all across the board (with one minor exception). Here's the rundown:
Thunderdome: 110-0
This should be self-explanatory to an elite player like yourself.
Zekeel:110-0
See Thunderdome.
Cubone: 100-0
Leavanny gets rid of Regigas' fighting weakness!
Audino/Victini: 100-0
Audino is ugly...
Shiftry: 100-0
This deck is too flippy to keep up with the insane consistency of RVRLEA EX.
BlastGatr: 100-0
Running two stage 2s just isn't viable in today's format.
Durant: 5-95 (w/out bias and theorymons: 0-100)
RVRLEA EX is an incredibly intricate deck; every single card is absolutely essential to winning. If even one card gets milled, this deck completely falls to pieces. With
REAL decks, this isn't an issue, but Durant is another beast entirely. Your best bet is to out speed the Durant player, quickly setting up and KOing their Durants before they can get enough energy to use Devour. However, this takes a lot a of skill (and some some luck). Even if you lose to a Durant player, you shouldn't feel too bad about it. After all, it's common knowledge among pros that Durant players are n00bs, scrubs, and/or trolls. Their is also a
growing amount of data pointing to the idea that Durant player's are also cheaters!
No matter what deck you choose for States, no matter how well you place, remember this: At least you still have your life.