Skrelp

Skrelp is a Poison, Water-type Pokémon from the Kalos region. It evolves into Dragalge when fed 400 candies.

Trivia

 * Along with Magikarp, Wailmer, Swablu, Larvesta, Noibat and Meltan, Skrelp is one of the Pokémon that needs 400 candies to evolve which is the largest amount of candies to evolve in the game.