Chaotic Swell (Cosmic Eclipse 187/236)

Chaotic Swell

Whenever either player plays a Stadium card from their hand, discard that Stadium card after discarding this one. (The new Stadium card has no effect.)

Card rule

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.