after beating league champion, compliting first pokedex (not jirachi and deoxsys) then random in woods.
Evee is not availiable in Pokemon Sapphire.
You don't.
i think u have to trade from Pokemon leafgreen or firered
Shellder, Staryu, Lombre, Evee.
U don't
No because there is no clock in leafgreen you must trade evee to a game with an internal clock to make it evolve to evee those games are ruby, sapphire and emerald also heartgold, soulsilver, diamond, pearl and platinum.
Trade it to ruby,sapphire or emerald have them evolve your evee at night then give it back to leafgreen.
no you can not catch evee in pokemon yellow but someone will give it to you
Vulpix, Evee, Growlithe.
Evee can be obtained only from firered and leafgreen and Pokemon xd gale of darkness.
Evee + Ditto in daycare
To get vaporion give evee a water stone.to get flerion give evee a fire stone. to get joltion give evee a thunther stone and that is all for Pokemon leaf fire and and water