NO because Casey is The True Pokemon Leauge Champion and the current champion is filling in for him on your game while he's on vacation. You can't Become Champion Unless you defeat Casey, The Pokemon Master... who dosent come back until you defeat the elite Four 500 times, i Have Never beat him because he is too strong!!mabey you have a better chance.. ... lol yeah right =D
In the Pokemon league.
Your rival is the champion.
You have to beat the original champion in the game
he is the Pokemon league champion
Lance
By beating the elite for then Beating the champion.
He is the champion at the Pokemon league.
No
hes is the pokemon league champion
the sinnoh league champion. defeat her and become the champion.
The Pokemon League CHAMPION! Trust me, shes HARD AS!
technically, when you beat the Pokemon league, you become the champion. but you cannot really fight as a part of the Pokemon league