Beat the elite for many times and let your Pokemon hold amulet coin to double the money.
First beat the Elite 4 100 times and then talk to the guy at the space center
use Pokemon on lv 100 with moves that are super effective against each elite 4 member
If you beat the elite four 100 times you don't go to heaven but you do get to join the elite four. They get harder and you can fight them whenever you want. You also fight trainers with level 100 Pokemon and you still get exp points.
I heard that you must go to "heaven" by beating the elite four, 100 times... It might not be true...
You can find out how many times you have beaten the Elite Four in Pokemon Diamond by checking your PC in the game.
I think you have to beat the Pokemon Elite five times.
i bet them and Cynthia 5 times in Pokemon platinum.
After you beat the elite four in Pokemon diamond there is nothing else you can do.
Yes, yes you do.
if you beat the elite four 20 times you get to take a trip to an exclusive region to catch johto Pokemon and there is a lot of rare Pokemon in johto.