i don't think anything,but you can make a good amount of xp and dollars
It doesnt matter how many times
After 20 wins, your rival's Pokemon level up.
You can find out how many times you have beaten the Elite Four in Pokemon Diamond by checking your PC in the game.
Go in to every Pokemon gym and get beaten at least 10 times againgst the gym leaders.
only once unless you erace your game
i bet them and Cynthia 5 times in Pokemon platinum.
bet the elite 5 as many times as you can
It doesnt matter how many times
Bertha has it beat her 5 times in the Pokemon elite 4
nothing
You find him in Mt corentet after you have defeated the elite 4 20 times.
on Pokemon diamond and pearl,you have to beat the elite four 3 times in platinum you can get a dusclops in the spring path.
yes, you beat them ten times
Absolutely Nothing.
Nothing significant happens if you beat the Elite 4 three times in Pokemon Diamond, unless you include acquiring huge amounts of money and leveling up your Pokemon a very good amount.
it means you suck at Pokemon and have no life to try 20 times
Nothing. Don't waste your time.