You can use pokemon except some legendaries like Dialga, Palkia, Giritina, etc.
Use your Pokemon to see how many trainers you can defeat in a row.
battle points known as BP are what you use for prizes at the battle tower.
Mo battle tower
you have to use three Pokemon in Single Battle two in Multi Battle four in Double Battle three in Wi-Fi Battle
how should i know! any!
You can either use R4 cheats or battle in battle tower.
We can get other regions starter Pokemon if we defeat the battle tower
after you battle 7 trainers in the battle tower you will get 3bp
its your opinion choose your strongest Pokemon maybe but not legendaries
not alot you can catch other players Pokemon that's it
get a high winning streak at battle tower
The Battle Tower is still there at the fight area but now it is the battle froniter