Go get all the legends. The 3 Regis and rayquaza.
yes
you go to the elite four and defeat them.
After you beat the Elite Four, go to the Battle Frontier.
Get your badge and go to the elite four. you must get waterfall.
beat the elite four and go to prof birch he will give it to you.
you beat the elite four and the guy after you beat them then go to the sky tower,but you only have one chance to battle it. you beat the elite four and the guy after you beat them then go to the sky tower,but you only have one chance to battle it.
beat the elite four and go to the navel rock
Beat the elite four first.
For Ruby and Sapphire you simply go to the Elite Four but for emerald you go to the elite four beat them then you unlock the battle frontier.
Go to Evergrande City to beat the Elite Four
You have to find it in Artisan Cave After you beat the Elite Four and go to the Frontier Place.
you should go look for the legendaries