It appears to be one of the theme deck intro packs they make now... should have been a partial/small deck and an unopened pack in it when you got it, right? the idea is open the pack and add whatever works with the deck into the deck... that way each deck is slightly different... they sell them at like card shops, online, Wal-Mart, etc... I think they usually have a bit more than 30... usually like 40-45 cards plus the pack... have any cards been removed from this since it was bought/opened? Thanks, good luck and watching/fanned =)