No , not at all , some frontier brains have legendary with high stats and more powerfull Pokemon that of the Pokemon league
He never became an official Pokémon League Champion but he was the Champion of the Orange League for defeating the Champion Drake and he was also the Champion of the Kanto Battle Frontier for defeating all of the Frontier Brains.
If you beat the Pokemon league with all your Pokemon (None from events or trade. All Pokemon you caught) and walk downstairs after your Pokemon league victory, your father gives you the Frontier Pass, a key item. The Battle Frontier's exact location i do not know, but if you check a walk-through site, It'll tell you where it is.
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.