The Pokemon TCG Xy11 Steam Siege Booster is a trading card game including 36 card packs with 8 new dual-type Pokemons. Every booster box contains at least one rare and three uncommon cards with ten randomly inserted cards from then master set included in each of the 36 packs, e.g. Foil, Holo, Ex or Mega-Ex. The variety of cards and combinations guarantees long hours of entertainment for children at the age of 3 and up.
