Hydreigon ex

Crashing Headbutt (200): Discard the top 3 cards of your opponent's deck. | Obsidian (130): This attack also does 130 damage to 2 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) | Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards. | Tera: As long as this Pokémon is on your Bench, prevent all damage done to this Pokémon by attacks (both yours and your opponent's).