The Anti Deck...

[Mob2099]

..well atleast anti toxicroak G, Regi, Machamp, AMU

4-4 banette (ghost head)
3-3-1 Gliscor Lv X
1-1 Mewtwo LV X
1 Skuntank G
1 azelf

4 rose
4 Moonlight
4 cynthias
4 plus power
3 POV
2 Felicity
3 bebe
1 lux
2 warp piont
2 night Main.

2 fighting
4 multi
6 psychic

Banette hits toxicroak G for 100 with plus power, thereafter banette powers itself up against psychic weak for 80 damage before weakness
Moon light helps out free retreat, enables Skuntank G.
Many ways to make Skuntank G poision onesided (evolve after power, retreat after power, Skuntank active at time of power)
Skuntank G enables Gliscor
Mewtwo Lv X for anti basic and big hits

 

[Darkwalker]

Broken Space Time works really well with both Banette and Gliscor. there should be at least 1 in herre to replace a Moonlight. You should also max out Felicity's over POV. Drop the last POV for a 4th Bebe's as well. Finally I would consider replacing the Azelf with a Uxie, or adding Azelf Lvl X into the mix to give you a sniping attack in the deck.

 

[Xuii2-the-cleric]

wow i like 10101010101010101010

 

[Godzfirefly]

If you want to use Skuntank G against a deck with 3 or more Stadiums, you'll want to have a few more in your own deck. Not to mention that you'll want to do your best to keep G decks from being able to keep their own Stadium in play for more than a round or so. As Darkwalker said, Broken Time-Space is a good option for you. With Gliscor and Multi Energy, you might also consider a Stark's Mountain, which would allow you to shift your focus to Gliscor quickly and easily.

Besides the Stadium shortage, though, it is an interesting deck concept.

Something that may help you keep it going, though, would be slipping an Uxie or two into the deck (perhaps with the Lvl X.)