Team Flare uses mind control to force the Vaniville townspeople to transport a huge tree containing Legendary Pokémon Xerneas to help them complete their ultimate weapon! Can X and his friends stop them and rescue Y’s mother from their clutchesà? Luckily Trainers Gurkinn, Korrina and Diantha arrive to help—each with a Mega-Evolving Pokémon! Who will be the latest addition to X’s Pokémon teamà?

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