Gardevoir-GX

Secret Spring

Once during your turn (before your attack), you may attach a Fairy Energy card from your hand to 1 of your Pokémon.

Fairy

This attack does 30 damage times the amount of Energy attached to both Active Pokémon.

Fairy

Shuffle 10 cards from your discard pile into your deck. (You can't use more than 1 GX attack in a game.)