Go to the new cities that are available are battle every trainer there. Then battle the wild pokemon in the thick tall grass.
If you are strong enough the elite four and alder.
After the elite four in Pokemon white.
First you have to migrate the Pokemon to diamond(have to beat elite 4) Then you trade the Pokemon to Pokemon white
At 'N's Castle after beating the Elite Four.
starter lv.60
You can battle the elite four at the pokemon leauge.
Well,what you have to do is beat the Elite Four.Simple
beat the elite four.
Beat the elite four
Well that is a hard question. It all depends on the level of your pokemon. To train level 25-30 pokemon the best place is Desert Resort. Another place that is good is Cold Storage.
Yes, but first, in white, you must defeat the elite 4.
You can get one in white forest, but you have to beat the elite four first.