Eeveelution/Games/Generation I

In Generation I, Eevee is obtained at the Celadon Mansion and can evolve into, , or through the use of an evolutionary stone.

Eevee

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Eevee is the 's starter Pokémon in as well as the starter Pokémon for both Michael in Pokémon XD: Gale of Darkness and the Hero/Heroine in Pokémon Conquest. In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, an Eevee is the first Pokémon of the and the undefined respectively. While Trace always evolves his Eevee into, the player's is treated as a which cannot evolve. To compensate for this, the player's Partner has higher stats than a regular Eevee and can be taught special moves related to the types of the other Eeveelutions.

Vaporeon

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Vaporeon, the first of the Eeveelutions in National Pokédex order, is a Pokémon. It evolves from an Eevee that is exposed to a Water Stone.

Vaporeon is the only Eeveelution that does not share any weakness with another.

Jolteon

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Jolteon is the second of the Eeveelutions, evolving from exposure to a Thunder Stone, and is an Pokémon.

Jolteon is the only Eeveelution without an obvious tail. However, in the The Electric Tale of Pikachu manga, it is shown to have a stubby tail under its spikes, although the tail is absent from its Generation V backsprite.

Flareon

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The final member of Generation I's Eeveelution trio is Flareon, a Pokémon, evolving from Eevee when it is exposed to a Fire Stone.

Flareon is the only Eeveelution with a type advantage over more than one other Eeveelution.