I assume you mean pokemon FROM gold version, and that you want to trade them to your emerald version.
You can't. Emerald is a generation three game whereas Gold is a generation two game. You can only trade Emerald with Ruby, Sapphire, Firered and Leafgreen. Pokemon Gold can only trade with Crystal, Silver, Red, Blue and Yellow.
If you mean actual 'Gold' pokemon, then you're talking about shiny pokemon. You need to catch them in the wild (1/+8000, so have fun with that).
Once you have completed the sinnoh Dex, go to Bebe's house in Hearthome citu and she gives you an Eevee. Give it poffins, don't let it get hurt, go to places and let massage it, give it carbos, protein and it should really like you! Do all this in the day and then it'll evolve! (At night it's Umbreon.)
Actually you don't have to comp-lete the sinnoh dex you go to her house and she talks about how she created the p.c. boxes and the offers you an evee you are talken about platinum she gives you an eevee but in pearl you have to complete the dex first..........,there are three ways to get eevee, 1.go to mr baklots place after getting the national dex 2.find beebee after getting the national dex 3.breed eevee or one of it's older forms with ditto then you.ll get a bunch of baby eevee eggs
You can find a Ditto in the grass right outside the Pokemon Day Care.
all you need is a action replay and you get shiny Pokemon you can email me to get info at where to get one at
NO there isn't only luck or AR
Seadra evolves once you trade it to another player's game while it's holding a Dragon Scale.