you need a rainbow energy yourself or a chandelure that hsa the ability cursed shadow.
beat the elite 4
have strong Pokemon
there is no battle frontier in Pokemon pearl,but there is a battle tower. you can go there after you beat the elite 4
You have to beat dawn in a Pokemon battle.
beat erika, fourth (celadon) gym leader, who uses grass Pokemon
first you have to have Pokemon lv 70 or up and you have to battle evrey Pokemon they throw at you.then when you get up to certin nuber of Pokemon you battle the champ.
You first have to beat team rocket, then the Kimono girls
You have to defeat Erika.
You battle
We can get other regions starter Pokemon if we defeat the battle tower
At the fight area (after you beat the Pokemon league)
first you enter a battle and when you beat any of the Pokemon your Pokemon will gain exp points and you will win money whenever you beat a Pokemon!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!