all i know is that you get one from Cyrus after u beat him.Other than that you need a cheat code. SORRY!:D
you have to get master balls from professor roan
There is only one master ball in Pokemon diamond. But there is a cheat for getting a WHOLE lot more. Look it up at how do you get 98 master balls? I don't know where the master ball is I think it's in a team galatic headquarters.
Use alot of Ultra balls and status moves
There are none.
with acion replay
u cant
to get master balls..you must have a friend with action replay and trade you pokemons that will hold a master ball
you can only get 1 master ball per game
There's no such guy in Sandgem Town that has 3 Master Balls.
You get it with an action replay
There is no way to do this.
action replay