Shadow Rider Calyrex VMAX (CRE 205)
Ability
Underworld Door
Once during your turn, you may attach a Energy card from your hand to 1 of your Benched Pokémon. If you attached Energy to a Pokémon in this way, draw 2 cards.
Max Geist
10+
This attack does 30 more damage for each Energy attached to all of your Pokémon.
VMAX rule: When your Pokémon VMAX is Knocked Out, your opponent takes 3 Prize cards.