just have bout lvl 40 Pokemon that have a good balance of types.
beat Cyrus
You get it after you beat team galactic boss Cyrus.
At the peak of Mt. Coronet.
To get a master ball in Pokemon Diamond you have to beat Cyrus. You can also get one in the game corner.
Team Galactic just basically leaves after you beat him...except for Saturn
From Cyrus after you beat him at the Galactic Veilstone Building (4th Floor)
you get the master ball once you beat Cyrus in the galactic building
if you use the right moves. so maybe.
The 8th gym is in Sunyshore, but you will be unable to go there until after you beat Cyrus on Mt. Coronet.
No one knows.Once you defeat him at the spear pillar he'll be gone forever .
win the lotto in jubilife,beat cyrus,action replay,or r4 chip
In Diamond you can get Dialga, but you find him in the Spear Pillar after you beat Cyrus of Team Galactic. Im Pokemon pearl you find Palkia.