You can get one from the Team Galactic Leader in Galactic HQ after you defeat him. Also, if your lucky enough to match all the numbers of your Lotto Ticket and your ID No, you'll get one as a prize. And if you're not, get an Action Replay Code for it.
you have to clone from emerald (GBA) then make a Pokemon hold it migrate it and walla!
you have to get master balls from professor roan
Get rid of some of the master balls! the number of master balls you have is the number of the pokemon
You get it with an action replay
There is no way to do this.
There is only one Master ball in Pokemon diamond so use it wisely. I hope you can find it!
94000130fcff0000b21c4d2800000000b00000040000000000000f4c03e70001d200000000000000
Type the any Pokemon cheat
to get master balls..you must have a friend with action replay and trade you pokemons that will hold a master ball
yes there is
To get a master ball in Pokemon Diamond you have to beat Cyrus. You can also get one in the game corner.
There's no such guy in Sandgem Town that has 3 Master Balls.