Yet another secret lurks within Mewtwo! The Genetic Pokémon doesn’t have just one Mega-Evolved form—it has two! Meet Mega Mewtwo X, an even larger Pokémon than Mega Mewtwo Y, with muscles bulging from its arms and legs. To evolve Mewtwo into Mega Mewtwo X, you’ll need the Mewtwonite X Mega Stone.
Mega Mewtwo X gains the Fighting type, and its Attack stat shows formidable growth.
Mega evolves from Mewtwo during battle.