Eevee

Eevee is known as the evolution Pokémon. She was introduced in Generation 1. Her first anime debut was The Battling Eevee Brothers where Mikey, a young boy was seen to own a Eevee. Other trainers who owned Eevee include: Gary, Sakura, May, Virgil, and Serena. She can evolve into eight different Pokémon depending on which method is used.

If a thunder stone is used, she will evolve into Jolteon

If a water stone is used, she will evolve into Vaporeon.

If a fire stone is used, she will evolve into Flareon.

If Eevee is leveled up during the day with friendship, she will evolve into Espeon.

If Eevee is leveled up during the night with friendship, she will evolve into Umbreon.

If Eevee is leveled up near a moss rock, she will evolve into Leafeon.

If Eevee is leveled up near a ice rock, she will evolve into Glaceon.

If Eevee is given affection and love while leveling up, she will evolve into Sylveon.

Eevee is a target to Team Rocket who often try to capture her. She is rarely found in the wild and can adapt to any habitat by evolving changing her form and capabilities. She is found mostly residing with humans. She is similar to Teto.