The only way is to win the lottery in jubilife
You have to get a cheat
no
you cant
if you clone a masterball
After you defeat Cyrus at the Veilstone Galactic building and he will give it to you
After you beat Cyrus at the Galactic HQ, he will give you one Master Ball.
No, by weight, a diamond has higher value than platinum.
Which Beach? There is more than one.
NO
Yes you can.
The only way you can get more than one masterball on Pokemon ruby/saphirre is you compeate in the Pokemon lottery corner. In Pokemon emerald you can have a Pokemon hold a masterball and then clone it.After you beat Team Rocket in the Silph Co. building, then the president at the top floor, after you beat Giovanni, will give the Masterball to you.
there is no way in platinum but if you have other pokemons like emerald or ruby you can clone items like master ball or rare candy after you beat elite four and then you can migrate pokemons from them and give them items like master balls so you will many master ball in order to catch any legendary Pokemon