BREAKthrough (青い衝撃 · 赤い閃光 Blue Shock · Red Flash) is the first TCG main expansion card pack from the XY BREAK series (International) and XY Break Era (Japanese). This set features Break Evolution and Mega Evolution. It was released on 26 September 2015 in Japan and 4 November 2015 in the US. This expansion set contains 118 cards in Japanese and 164 cards in English.
An amazing discovery!
Pokémon BREAK Evolution opens a new path to power that builds on a Pokémon’s existing strengths and creates all-new battling options! These new Pokémon 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 the Pokémon TCG: XY—BREAKthrough expansion!