There is also the Pre-order Promo Card: The Early Bird.
As it stands, does everyone have all four main decks? I'm currently a Super league-er, and I don't think all those coaches do. Isn't there potential that someone will not have access to every regular (non-promo) card in every game they play? What if special play cards wind up becoming required, and both coaches forget to bring/don't have all the cards that game? Would these rules be the same across all 3 leagues?
Sorry, asking more questions instead of answering yours. My gut is saying if league rules allow/require special play cards, focus more on banning specific cards you don't want in, then if everyone has access to all the cards. As long as any broken cards are removed, does it really matter if coaches are drawing from a slightly different pool of cards? Also going with the Variant Three- One Deck rules, will partially mitigate the access issue.