Gyarados is a Water/Flying-type Pokémon known as the Atrocious Pokémon, evolving from the weak Magikarp at level 20 in a dramatic transformation symbolizing strength from weakness. Standing 6.5 meters tall and weighing 235 kg, it boasts high Attack (125 base) making it a formidable physical attacker since Generation 1. Famous for its rage, it demolishes everything when enraged, with Intimidate ability lowering foes' Attack. Mega Gyarados gains Dark typing, boosting Attack to 155 for even greater power. Versatile in battles across games like Legends Z-A, UNITE, and GO, it's prized for moves like Waterfall, Dragon Dance, and Crunch.