Power Tree (LM 76)
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.
Once during each player's turn, if the player has no Special Energy cards in his or her discard pile, that player searches his or her discard pile for a basic Energy card, shows it to the opponent, and puts it into his or her hand.