M Mewtwo-EX (BKT 64)
Psychic Infinity
10+
This attack does 30 more damage times the amount of Energy attached to both Active Pokémon. This attack's damage isn't affected by Weakness.
weakness: x2
resistance: none
retreat cost: 2
When a Pokémon-EX has been Knocked Out, your opponent takes 2 Prize cards.
When 1 of your Pokémon becomes a Mega Evolution Pokémon, your turn ends.