What it would happened if you beat every battle frontier facility 100 times ?

Question

And what about champion ?

Answer 1

Battle Frontier: You will get prints for your VS Recorder. If you beat the battle facility 3 times, you'll get a Silver one, while beating it 7 times nets you a Gold one.
Exceptions: Battle Hall: 5 for Silver, 17 for Gold.

Elite Four: The Levels that your Rival battles you with in Survival Area will be higher.

Comments

How much higher ?

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"After the Elite Four are defeated 10 times, Barry's Pokémon's levels each increase by 10, and his reward money is 7500. After they are defeated 20 times, his Pokémon gain 10 further levels and his payout is 8500."
http://bulbapedia.bulbagarden.net/wiki/Barry_(game)#In_Pok.C3.A9mon_Platinum