(Prism star) rule
You can't have more than 1 card with the same name in your deck. If a card would go to the discard pile, put it in the Lost Zone instead.
Full Moon Star
For each of your opponent’s Pokémon in play, attach a Energy card from your discard pile to your Pokémon in any way you like.
Psystorm
Damage: 20
This attack does 20 damage times the amount of Energy attached to all Pokémon.