Parallel Worlds: Two paths to Power! An amazing discovery! Pokemon BREAK Evolution opens a new path to power that builds on a Pokemon's existing strengths and creates all-new battling options! These new Pokemon BREAK come from twin worlds, home to Zoroark BREAK, Mega Mewtwo X, and Mega Mewtwo Y. One world of technology, one world of nature, and all the wonders of BREAK Evolution are yours to explore in Pokemon TCG: XY BREAKthrough expansion. Contains: -8 Pokemon - XY BREAKthrough Booster Packs -65 Card Sleeves -45 Pokemon TCG Energy Cards -A players guide to the XY Breakthrough expansion -6 damage-counter dice -1 competition-legal coin-flip die -2 acrylic condition markers -A collector's box to hold everything -4 dividers to keep it organized -A code card for the Pokemon Trading Card Game Online!