Gyarados (4/123) [HeartGold & SoulSilver: Base Set] Human Shaman Set: Tournament Promotion Cards Era:

Set: Tournament Promotion Cards Era: Universe Survival Saga Rarity: Promo Game character: Koichiarator Color: Black Card type: Battle Power: 20000 Combo power: 5000

When its power becomes 20 this way

Set: Legends Type: Instant Rarity: Uncommon Cost: {3}{G} Storm Seeker deals damage to target player equal to the number of cards in that player's hand

{T}: Add {B}{G}

Set: Kaladesh Inventions Type: Artifact — Equipment Rarity: Mythic Cost: {2} Equipped creature has haste and shroud

Gyarados (4/123) [HeartGold & SoulSilver: Base Set] Human Shaman Set: Tournament Promotion Cards Era:Set: HeartGold & SoulSilver: Base Set Type: Water Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless