(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 Psychic Energy card from your discard pile to your Pokémon in any way you like.

Psystorm

20×

This attack does 20 damage times the amount of Energy attached to all Pokémon.