You have to beet the champion! I don't no were the champion is though OK!
have Pokemon pearl and emerald both in the ds. it will say migrate from emerald on the Pokemon pearl screen. that`s all you need to know.
You need to Migrate it from Pokemon emerald
Umm.. You Might need to migrate from Pokemon emerald
You need to migrate it from Emerald Version.
You need to migrate it from FireRed, LeafGreen, or Emerald. But if you have a Deoxys in Pokemon Ruby or Sapphire, then you can migrate from them to Pal Park.
You need the National Dex before you can migrate. Go to Pal Park, save the game, get the Pokemon you want to migrate in the PC, save again, play Platinum and at the menu it will say migrate from Emerald. Im the Pokemon expert. you are very lucky.
You will need to migrate from Pokemon Ruby/Sapphire/Emerald.
Migrate a Pokemon holding it on Pokemon emerald. If you don't know how to get it on emerald you need to get every battle frontier symbol in silver.
Access to the Pal Park Pokemon Ruby, Firered, Leafgreen, Sapphire Or Emerald
you need to migrate from emerald or firered/leafgreen where you can get him from birth island
migrate from Pokemon Sapphire, Ruby, or Emerald only
You'll need to migrate it from Pokemon Ruby, Sapphire, or Emerald to the Pal Park and catch it there.