Gardevoir-GX (SMA SV75)
Once during your turn (before your attack), you may attach a [Y] Energy card from your hand to 1 of your Pokémon.
This attack does 30 damage times the amount of Energy attached to both Active Pokémon.
Shuffle 10 cards from your discard pile into your deck. (You can't use more than 1 GX attack in a game.)
When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.