you have to clone from emerald (GBA) then make a Pokemon hold it migrate it and walla!
Use it on Palkia.
go in yellow circles and stairs
give a Pokemon the masterball and put it in the daycare with a ditto then it will be cloned!!!!!!
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There is only one Master ball in Pokemon diamond so use it wisely. I hope you can find it!
how to catch dailga in Pokemon diamond use the master ball
It's hard 2 explain but here goes u have to go to the battle tower and go 2 the computer to the right and then put Pokemon in there and u go to the far right hand girl and that is how u clone stuff like i cloned my thyphlosion 6 times in a row but don't clone legendaries coz i tried that but i found out after that latias was gone so i am telling u now don't clone legendaries kk this is not in sinnoh(diamond pearl + platinum) though.
Have a friend trade you a Pokemon holding the master ball they got.
you have to get master balls from professor roan
giratina
Get a Pokemon you want to clone give the Pokemon a master ball to hold and then go to your PC after cloning get the clone out take the master ball of your clone and your other Pokemon which you cloned with and take the master ball of him and keep on doing it for as long as you want.
You receive a master ball in the lottery in both Pokemon pearl and diamond by having a Pokemon with a matching ID to that of the lottery (which changes). But the catch is the lottery number is only going to be an ID from a traded Pokemon. So TRADE TRADE TRADE!