Once during your turn (before your attack), you may put 3 damage counters on this Pokémon. If you do, search your deck for up to 3 Darkness Energy cards and attach them to this Pokémon. Then, shuffle your deck.
Discard a Special Energy from your opponent's Active Pokémon.
This attack does 50 more damage for each damage counter on this Pokémon. (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.