Either Jolteon, Vaporeon depending if you want an attacker (Vaporeon) ir a substitute passer (Jolteon).
I think the best evolved for evee is Umbreon (dark)
you can evolved evee to umbreon at Night with highhappiness
good luck :)
evee
Train Evee during the day.
you can't you have to get an evee
use a leaf stone
espon
dusclops
gliscor
shinx
Number 180 in Pokemon Emerald is Flaffy the evolvtion of mareep and the pre-evolvtion of ampharos.
get Feebas' bueaty full
problably jolteon
If you breed a evee you will get an egg when it hatches it will be evee this is a great way to get all the forms of evee.
Raichu. Use google next time.
it is the evolvtion of yamask so... it is rare in the relic castle
Evee is given to you in Celadon Mansion.
As soon as possible because that comes with huge benefits.
Larvitar is unobtainable in Pokemon Pearl.