you don't!
There are no cheats in Pokemon diamond, although you can buy action replay and get all of the cheats possible like: Every Pokemon,999 Master Balls ETC
x999 ball master, 999 caramelle rare e Codici
no you cant get 45 mastureballs in emeral without cheats, you onlu GET 1.
You cant.You can only get 2 master balls.
you make a lot of money and buy another one. knock knock knock
== == you get masterballs in diamond and pearl by gotting a wifi mystery gift on Christmas, GMT use cheats
it is not possible
If any of your Pokemon's ID numbers match the loto number completely you win one in Jubilife City. You get it in the Veilstone Galactic Building. Or when you beat Cyrus
You trade Pokemon from friends that's Pokemon is holding a master ball
Clone your Pokemon and give them the master ball
You can't without using cheats.
cloning glitches