Eevee is one of the unique Pokemons that has multiple possible evolutions. One of the possible evolutions of Eevee is the Leafeon. This guide will show you how you can turn and evolve your Eevee into a grass-type Leafeon.
Before you can evolve Eevee into a Leafeon, you are going to need an Eevee first. If you do not have one already, you can get an Eevee in the Obsidian Fieldlands. You can catch an Eevee very early on in the game as well.
Go to Obsidian Fieldlands and head east to the Horshoe Plains. You will see some Eevee here near the northern lake. They can be typically found near the tall grasses in the area.
Once you have your Eevee, it is time to evolve it into a Leafeon.
To quickly evolve Eevee, simply take it to the Moss rock. You can find the Moss rock in the Obsidian Fieldlands. From the Tidewater Dam, simply go south past the dam.
Once you are next to the Moss rock, simply press X and evolve Eevee into a Leafeon. Another way you can evolve Eevee into Leafeon is by using a Leaf Stone. You can get a Leaf Stone in the village in exchange for Merit Points.