The Pokemon center on victory road. for Pokemon levels around 20 go to the diner in the beach city.
route 205 for Pokemon diamond, pearl and platinum. the trainers have Pokemon from level 10 to level 17
go to the resort area and find a syther to battle and it will level your Pokemon about 615 points ________________________________________________________________________________________________ What about before the Pokemon league?
Train it.
probly at the pokemon leuge
In Pokemon Diamond i say Torrterra is the strongest grass and ground Pokemon because i have a level 100 one and it's great.
At the Pokemon league.
It depends. Find you Pokemon on theis site for the best information: www.serebii.net
No, the best place to find diamonds are on level 10-15.
In Sunnyshore City or Underground.
Elite 4
find a place that has wild Pokemon the same level as it.
the elite four. battle them over and over again or go to Iron Island. It might help!