Ability

Underworld Door

Once during your turn, you may attach a Psychic Energy card from your hand to 1 of your Benched Psychic Pokémon. If you attached Energy to a Pokémon in this way, draw 2 cards.

VMAX rule

When your Pokémon VMAX is Knocked Out, your opponent takes 3 Prize cards.

Max Geist

10+

This attack does 30 more damage for each Psychic Energy attached to all of your Pokémon.