Melmetal-GX

Ability: Hard Coat — This Pokémon takes 30 less damage from attacks (after applying Weakness and Resistance). | Metal Blast (110+): This attack does 20 more damage times the amount of Metal Energy attached to this Pokémon. | Iron Force-GX: Attach any number of Metal Energy cards from your discard pile to this Pokémon. (You can't use more than 1 GX attack in a game.) | Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.