Mega Mewtwo X

Mega Mewtwo X is the Mega Evolution of Mewtwo. Mewtwo Mega Evolves in battle while holding the Mewtwonite X, and returns to normal when the battle ends. Mewtwo has one other Mega Evolution, Mega Mewtwo Y.

It is a Psychic/Fighting-type instead of a pure Psychic-type like Mewtwo. It takes double damage from Flying, Ghost and Fairy, and resists Fighting and Rock. Compared with Mewtwo, it becomes weak to Flying and Fairy, and is no longer weak to Bug and Dark. Its base stats total 780, 100 more than Mewtwo: Attack goes from 110 to 190, Defense from 90 to 100 and Special Defense from 90 to 100. Its ability is Steadfast; Mewtwo has Pressure, with Unnerve as its hidden ability.