Eevee Eevee’s genes are unstable and have the capability of undergoing changes immediately due to different energy radiating from certain specific sources. There may be more evolutions not currently known. New Pokémon.
[Day Favourite dark type - Umbreon Umbreon's my favourite eeveelution and favourite dark type because it comes from gen where happiness evolution and day and night features were introduced. As well as that, Umbreon just looks badass