Giovanni's Gyarados (5/132) [Gym Challenge 1st Edition] Basic Darkness Energy to have this card gain

to have this card gain the ATK of that monster untill the End Phase

Set: HeartGold & SoulSilver: Unleashed Type: Item Rarity: Uncommon

Set: Starter Deck: Heaven's Yellow Card type: Digimon Rarity: Rare Digi type: Archangel Play Cost: 7 Form: Ultimate Attribute: Vaccine Digivolve Cost: 3 Digivolve Cost Level: 4 [When Attacking] 1 of your opponent's Digimon gets -1000 DP for the turn

When an attack is declared involving this card that was Synchro Summoned this turn and another monster: You can make this card's ATK become double its original ATK until the end of this turn

If this card is Special Summoned from the Graveyard by another cards effect

Giovanni's Gyarados (5/132) [Gym Challenge 1st Edition] Basic Darkness Energy to have this card gainSet: Gym Challenge 1st Edition Type: Water Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless