Gyarados/123 - HeartGold SoulSilver Reverse Holofoil Number_XY158 the set is entirely comprised

the set is entirely comprised on Generation I Pokémon and even features reprints of cards from Base Set

This power can't be used if Aggron is affected by a Special Condition

FormStage 2 - Evolves from Frogadier

Water Giant Geyser-GX Attach any number of Water Energy cards from your hand to your Pokémon in any way you like

Ability Psychic Recharge Once during your turn (before your attack)

Gyarados/123 - HeartGold SoulSilver Reverse Holofoil Number_XY158 the set is entirely comprisedRarityHolo Rare Card TypePokmon Hit Points130 HP FormStage 1 Evolves from Magikarp TypeWater Water,Colorless,Colorless Hydro Splash (50) Water,Water,Colorless,Colorless Hyper Beam (80) Discard an Energy card attached to the Defending Pokmon. Weakness Lightning 2 Resistance Fighting 20 Retreat CostColorless Retreat CostColorless Retreat CostColorless ArtistMitsuhiro Arita