No you only get one master ball in Pokemon pearl. Sorry if this has upset you.
you could use a lot of master balls
yes, all you have to do is give it to your Pokemon and clone it.
well you can make a Pokemon hold a master ball and clone Pokemon
in all of the Pokemon game, the way to get a master ball is to beat the boss of the criminal organization and you will get this as a reward. but i heard that you can get more master balls in pearl, diamond and platinum in jubilife city in the tv station by that lottery stand but i think it will take a lot of trading with many trainers to get one master ball just to match the numbers. but i think there is a cheat to get A LOT of master balls. I hope that this answer is helpful to many owners of these Pokemon games.
the old fasion way i hope you have a lot of ultra balls
You cant buy master balls... you can get it from a lot or something its not so easy to get
there is a game shark cheat THAT WORKS for Pokemon ruby there is no codes. it's for having all the poke balls,so then you will have 99 master balls and then give one to a Pokemon and trade it. once you have traded it, take the master ball from it and repeat this process.
Keep playing and catch the Pokemon that you don't have and win a lot of contests. From: Austin the Pokemon Master
save before you get the master ball, and when you do get it, trade a Pokemon over to another game, while the Pokemon holds the master ball (i suggest weak ones). then shut the game off, turn it back off and you will repeat the process. then, after you not only double it, but also triple and 4x the master balls, trade the Pokemon back to your game and you will have a lot of master balls.
there isn't you can only make a lot of them not infinite
in silf.co or somrthing like that is 1
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.