Metagross

Psychic Float

If you have any Psychic Energy attached to your Active Pokémon, the Retreat Cost for that Pokémon is 0.

Pulse Blast

Double Leg Hammer

Choose 2 of your opponent's Benched Pokémon. This attack does 40 damage to each of them. (Don't apply Weakness and Resistance for Benched Pokémon.)