Holon Ruins (Delta Species 96/113)

Rules

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.

Each player that has any Pokémon in play that has δ on its card may draw a card once during his or her turn. If the player does, he or she discards a card from his or her hand.