You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.
Choose a card from your hand and put it on top of your deck. Search your deck for a Pokémon, show it to your opponent, and put it into your hand. Shuffle your deck afterward. (If this is the only card in your hand, you can't play this card.)