Aerodactyl GX (Secret) 244/236 - SM Unified Minds Holofoil

Primal Winds

This attack does 50 damage times the amount of Energy attached to your opponent's Active 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.