Hydrapple ex

Ability — Ripening Charge: Once during your turn, you may attach a Basic {G} Energy card from your hand to 1 of your Pokémon. If you attached Energy to a Pokémon in this way, heal 30 damage from that Pokémon.

Syrup Storm (30+): This attack does 30 more damage for each {G} Energy attached to all of your Pokémon.