A Stage 1 Pokemon Card of type Water with the title Gyarados and 130 HP of rarity Rare evolved from Magikarp from the set Legendary Treasures and the flavor text: Once it begins to rampage, a Gyarados will burn everything down, even in a harsh storm. It has the attack Howling Rampage with the cost Water, Colorless, the energy cost 2 and the damage of 20+ with the description: Does 20 damage times the number of Prize cards both players have taken. It has the attack Hydro Splash with the cost Water, Water, Colorless, Colorless, Colorless, the energy cost 5 and the damage of 120. It has weakness against Lightning 2. 
Gyarados