Decidueye-GX

Once during your turn (before your attack), you may put 2 damage counters on 1 of your opponent's Pokémon.

Put 3 cards from your discard pile into your hand. (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.