Jolteon

Jolteon is an Electric-type Pokémon from the Kanto region. It evolves from Eevee after being fed 25 candies.

Trivia

 * There is an easter egg that refers to the names of the Eevee Brothers. Naming Eevee to Sparky will result in a Jolteon when it is evolved.
 * Works only once per account and even if Eevee was already evolved into Jolteon not using this method.