You can't have more than 1 cards with the same name in your deck. If a card would go in the discard pile, put it in the Lost Zone instead.
You can only have 1 Prism Star Card of the same name per Deck
Wish Upon a Star
If you took this Pokémon as a face-down Prize card during your turn and your Bench isn't full, before you put it into your hand, you may put it onto your Bench and take 1 more Prize card.
This Pokémon is now Asleep. At the end of your opponent's next turn, the Defending Pokémon will be knocked out