you can't.
You Need Cheats The Wild Pokemon Modifier.
i don't have emerald but the valuable Pokemon is rayquaza
how to get all the tickets in Pokemon emerald?
yes, you either get there by mystery gift or cheats
no no
Without cheats they randomly appear in the wild or hatch from eggs.
As far as I know you can not.
transfer from emerald
no you cant
Currently impossible without cheats.
get the mystery gift,talk to prof,talk to mom
You don't.