To get the three beings and Dialga, you must beat Dialga and then battle them again.
Rusty Apper was born on May 26, 1987, in Hampshire, England, UK.
Vanish
use hacks:P:P:P
These are the legendaries in diamond that you can get without any cheats:DialgaUxieMespriteAzelfHeatranRegigigasGiratinaCresseliaRotom
obma
it will apper in your goals
Apper class
All legendaries can be shiny when soft resetting.
yes
Unfortunately not; Legendaries can't breed at all, not even with Ditto.
No, you can't find all the legendaries in Diamond. There isn't a Pokemon game with all the legendaries in it. You can capture 8 legendaries in Diamond, f you want all the legendaries, you'll need to visit events, trade or migrate them.
no because if you put a legendaries in the daycare they don't have baby's (but manaphy does what=pione).