The attacks of non-[Y] Pokémon (both yours and your opponent’s) cost [C] more.
Whenever any player plays an Item or Supporter card from their hand, prevent all effects of that card done to this Stadium card.
This card stays in play when you play it. Discard this card if another Stadium card comes into play. If another card with the same name is in play, you can’t play this card.
Prism Star Rule: You can’t have more than 1 Prism Star card with the same name in your deck. If a Prism Star card would go to the discard pile, put it in the Lost Zone instead.