Contains 36 booster packs, each booster contains 15 cards(1 rare, 3 uncommon, 11 common). The Portal set is not an expansion to the main Magic: The Gathering game. It is instead a new game based on the same rules, but with many complex issues removed from the game. It has a certain amount of compatibility with the core Magic game, but it is not entirely the same. It is intended for new players.