Kirlia

Kirlia is a Psychic, Fairy-type Pokémon from Hoenn region. It evolves from Ralts after being fed with 25 candies and it can evolve into Gardevoir when fed with 100 candies.

Trivia

 * Since Generation IV of core series games, Kirlia can evolve either into Gardevoir if it is female or into Gallade if it is male, but in Pokémon GO it's currently not possible.