Pokemon 2016 Pokemon Card XY Break CP#6 20th Anniversary booster box (15 packs) (1st Edition). It was only available at the Pokemon Center and a few toy stores in Japan, in September, 2016, for a very limited time and in very limited quantity. The box conains 15 packs. Each pack contains 10 random cards (9 cards + 1 holofoil card, but some packs have 2 holofoils). There is a a total of 150 cards in the booster box. This set was made to celebrate Pokemon's 20th anniversary. It contains reprints of the original 1996 Pokemon cards as well as some new cards. The booster packs are 1st edition which is only sold for the first few weeks of production (It has the "1st Edition" stamp on the bottom corner of the card). NOTE: YOU WILL NOT GET THE FULL SET OF CARDS IN ONE BOOSTER BOX.