YOU CAN'T, WITHOUT BEATING THEM!!!!!!!!!!!!!!!!!!
or being beaten
You can find out how many times you have beaten the Elite Four in Pokemon Diamond by checking your PC in the game.
defeat the elite four
it is the elite four
The champion in the Elite Four.
nation pokedex
-mongmong908
kill the elite 4 noob
In the Pokemon games, the Elite Four are kind of the final boss to the games. In every game (including Pokemon Diamond) you will find them at the end of Victory Road.
the same
erm......you battle them.
Beat Cynthia after Elite Four
After you beat the elite four.