when the three legandary pokemon of the lakes are captured the you have to go to the galactic hq in veilstone and get through it then when you beat the boss he gives you a master ball.
Hope this helped :D
there is no master ball in diamond and also great ball. but there is silver ball-silver ball is like a master ball.
Have a friend trade you a Pokemon holding the master ball they got.
if you beat the boss of team galactic, you will get a master ball from him
A Poké Ball can't be changed into a Master Ball.
you get a master ball from proffeser rowen to catch Dialga
You cannot find a second master ball however you can trade Pokemon to get another Pokemon with a master ball or use an action replay
giratina
how to catch dailga in Pokemon diamond use the master ball
get an action replay
There is only one Master ball in Pokemon diamond so use it wisely. I hope you can find it!
Use it on Palkia.
you have to trade with a friend.