The win condition with this deck is combining Gardevoir’s Psy Shadow ability with Mewtwo EX’s 150 power Psydrive attack. Psy Shadow allows you to place an extra Psychic Energy on the Pokémon ...

This means Mew ex can copy even the best attacks in the game, such as Charizard ex's 200 damage Crimson Storm and Mewtwo ex's 150 damage Psydrive, which both cost four Energy but come at the cost ...