This is the deck I've been destroying everyone with, and since nobody in my area really has primal groudons I'm using japanese primal groudons as proxies. The strategy behind the deck is straight forward, start wobbuffet if you can then hide behind wobb, silent lab and robo's until you can start destroying things on your opponents side of the board, whimsicott heals dmg off of things for x dmg that was dealt to x card on your bench.
3-3 primal groudon (gaia volcano)
3 wobbuffet (Bide barricade)
2-2 whimsicott (windy mischief)
4 strong energy
8 basic fighting energy
2 fairy energy
4 Vs seeker
2 prof sycamore
2 Shauna
1 professor birch's Observations
4 korrina
2 lysandre
1 hex maniac
2 robo substitute
2 weakness policy
2 hard charm
2 mega turbo
1 prof's letter
3 switch
1 level ball
1 sacred ash
1 energy recycler
2 fighting stadium
2 silent lab
3-3 primal groudon (gaia volcano)
3 wobbuffet (Bide barricade)
2-2 whimsicott (windy mischief)
4 strong energy
8 basic fighting energy
2 fairy energy
4 Vs seeker
2 prof sycamore
2 Shauna
1 professor birch's Observations
4 korrina
2 lysandre
1 hex maniac
2 robo substitute
2 weakness policy
2 hard charm
2 mega turbo
1 prof's letter
3 switch
1 level ball
1 sacred ash
1 energy recycler
2 fighting stadium
2 silent lab