News 'Rayquaza vs. Keldeo Battle Arena Deck' in September!

[ironcladmerc]

So will all of these cards be playable in standard or not?

Not all of them, some of them, like holo energy, Karen, Sycamore, Lysandre, VS Seeker, but the pokemon for the most part are expanded only. But some regionals are in expanded, so these battle decks help get some expanded cards.