This attack does 30 more damage for each damage counter on your opponent's Active Pokémon.
10+
Dream Fear-GX
Choose 1 of your opponent's Benched Pokémon. Your opponent shuffles that Pokémon and all cards attached to it into their deck. (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.