A Stage 1 Pokemon Card of type Water with the title Giovanni's Gyarados and 90 HP of rarity Rare Holo evolved from Giovanni's Magikarp from the set Gym Challenge.  It has the attack Summon Storm with the cost Water, the energy cost 1 with the description: Flip 2 coins. If both of them are heads, this attack does 20 damage to each other Pokemon (even your own). Don't apply Weakness and Resistance for this attack. It has the attack Dragon Tornado with the cost Water, Water, Colorless, Colorless, the energy cost 4 and the damage of 40 with the description: Unless this attack Knocks Out the Defending Pokemon, choose 1 of your opponent's Benched Pokemon and switch it with the Defending Pokemon. It has weakness against Grass 2. It has resistance against Fighting -30. 
Giovanni's Gyarados