When the Standard format was released, we changed the Full Deck pack so as to only have Standard characters in it. This new pack is not successful and we decided to go back to the former version. From now on you can have the Original Full Deck: 8 cards within all the characters in the game and at least 1 rare card guaranteed.
Standard was supposed to be the wave of the future.
Instead, it's only one of the ten formats.
Unless and until it's given a majority of slots, it's going to be ignored by the old players who have all of the old, expensive, cards, making the lone Standard room (The Exception room?) essentially a place for new players to battle other new players, not unlike the basic room.
After that, you have eight rooms to choose from that refuse to abide by the Standard limitations. Sadly, a non-shocking state of disregard for STandard. I'll pour a lil' out for my homie.