If u have emerald then just clone master balls at the battle tower and then give them to six Pokemon then migrate.
no
no
no!
No, Kurt cannot make a Master Ball.
Yes, you can only get one master ball. The only other way to get more is through hacking.
master ball
prof. oak
the professor will call you and give it to you
No
Professor Elm gives you the only master ball in the game.
Using master ball
i dont think there is a way