Darkrai-GX#158 · Burning Shadows

Once during your turn (before your attack), if this Pokémon is in your discard pile, you may put it onto your Bench. Then, attach a Darkness Energy card from your discard pile to this Pokémon.

This attack's damage isn't affected by Resistance.

If your opponent's Active Pokémon is affected by a Special Condition, that Pokémon is Knocked Out. (You can't use more than 1 GX attack in a game.)