So return here after defeating Gardenia.
I'm have just experimented with this and using the name rater to change the name back to the species name works to remove a nickname.
Retrieved 11 February 2016.
With it, you can select which type of Pokemon you want to evolve your Evee into.
Sugimori is also responsible for the boxart legendary Pokémon and all of the official artwork for the games.
Try this method if you want to give it a shot and give your Pokémon creation a Pokémon-esque name! Celebi is Mythical-type Pokémon, known as the Voice of the Forest.