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The Mega Mewtwo Y Box is a Pokémon TCG collection box from the BREAKthrough era centered on Mega Mewtwo Y. As a collection box it typically includes a large promo card or oversized card featuring Mega Mewtwo Y, several BREAKthrough booster packs, and additional collectibles such as a coin, playmat or figure and themed storage for cards. It is intended for collectors seeking the promo and extras while providing booster packs for players to expand their BREAKthrough card pool.
Catalog pricing data as of 21 Apr 2026, 12:37