They were the person who previously analyzed the 30,000 results and also found the combination for the perfect Mewtwo ex deck. Their data suggests that a deck involving the three Fire-type Pokemon ...
When facing a Mewtwo EX flanked by Gardevoirs ... Chuck all your extra fire energies into a benched Charmander, who you'll then evolve quickly into a Charmeleon and finally a Charizard EX.