Magikarp

Magikarp is an uncommon Water-type Pokémon from Kanto region. It evolves into Gyarados when fed with 400 candies.

Trivia

 * There is medal for catching extra-large Magikarps, called Fisherman.
 * Along with Wailmer and Swablu, Magikarp is the Pokémon in the game that needs 400 candies to evolve which is the largest amount of candies to evolve in the game.
 * As a Raid Boss, Magikarp's CP is 1,165.
 * Its maximum capture CP in Bonus Challenge is 125.
 * Magikarp is considered as one of the least effective Pokémon in combat.