[PKM] Dusk Mane Necrozma GX (SM102) [Sun & Moon: Black Star Promos]

Discard 3 Energy from this Pokémon.

You can use this attack only if you have more Prize cards remaining than your opponent. (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.