Mewtwo

A Pokémon whose genetic code was repeatedly recombined for research. It turned vicious as a result.

Psychic (20+): This attack does 20 more damage for each Energy attached to your opponent's Active Pokémon.

Barrier: During your opponent's next turn, prevent all effects of attacks, including damage, done to this Pokémon. If 1 of your Pokémon used Barrier during your last turn, this attack can't be used.