Was given a shiny Eevee Lv 50 wont evolve to an Espeon Why?

Question

I has 5 hearts in Anime and still wont evolve

Answer 1

Because you don't use those hearts to evolve Eevee into Espeon - that's just Sylveon. What you need is happiness, which you can build by walking with your Pokemon in your team, giving it certain items, etc.

Once Eevee has enough happiness, it will evolve the next time it levels up. Make sure its daytime of course, or it will evolve into Umbreon instead.

Bulbapedia on Happiness (includes ways you can increase happiness)

Comments

Thanks man! and do you no what type of item and over things i could do to make it happy ?

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I have given it a soothe ball and used it in battle alot, about walked around alot and its still not evolving to an espeon
 Why ???

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You keep doing that and it will evolve eventually. It takes time.
Try giving it massages daily from the massage person in Cyllage City. It increases happiness, but you can only do it once a day.