"The red Gyarados is extremely rare. Even the normal Gyarados is hard to find in nature, let alone its color variation. It's bigger, agressive and much more powerful... And no one expects the red Gyarados. It's so unlikely to find one that, when you least expect it, it's already upon you at full force. It takes down even the bravest of explorers. You never underestimate the Red Gyarados."