Easy, if you have good pokemon!After you catch palkia and defeat the Elite 4 you can go there, and you will also be able to battle your rival there as many times as you want on a Friday.
Pokemon battle arena is better than Pokemon league.
your Pokemon aren't supposed to gain exp points in the battle arena
you dont
There is no Battle Frontier in Pokemon Diamond and Pearl. Only the Battle Tower.
Corphish is a water type of Pokemon. In Pokemon Battle Arena, it will evolve if you manage to raise it to a level 30.
battle trainners, and win
there is no battle frontier in Pokemon pearl,but there is a battle tower. you can go there after you beat the elite 4
it's not possible!
there is none.
no
yes
no