Carracosta

Its jaws are terrifyingly powerful. It could eat Omastar and Omanyte whole and not be bothered in the slightest by their shells.

Ability — Ancient Custom: Pokémon Tool cards attached to your opponent’s Pokémon have no effect.

Aqua Impact (80+): This attack does 20 more damage for each Colorless in your opponent’s Active Pokémon’s Retreat Cost.