Get the numbers of the gym leaders and call them for rematches, where they'll be available in the Fighting Dojo. A gym leader will stay in the Fighting Dojo until you rematch them, so you can have all of the gym leaders there. It can take a while to get the phone numbers and call all of them when they're available for a rematch, but it's better than fighting wild Pokemon (the highest you can fight is level 50 at Mt. Silver). In addition, you can call trainers that you have the phone numbers of for rematches during certain times of the day.
One way that I level up my Pokemon is putting them first and then in a battle switch it and beat the Pokemon and both Pokemon get exp.
or you van put it in the day care
battle wild Pokemon all the time that i do it and ive nearly got all level 100s
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.
I would definitely say bugsy's Pokemon gym in azeala town or ilex Forrest
Just do the Pokemon League over and over
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?
The best place to evolve a Pokemon in Pokemon Heart Gold is at Mt. Silver.
The elite four
victory road is a pretty good place
I would reccomed Viridian Forest and Mt. Silver. In Viridian Forest, the wild Pokemon are level 3-5, but the trainers have Pokemon between level 39-45. Mt. Silver has wild Pokemon from level 38-50.
Route 45 is probably the best place.
Elite four is the best because they get better and better, and your Pokemon are equally matched up.
Victory Road and Mt. Silver. However, if you cant reach this places yet, I transferred mine across to my older game where they could train Pokemon their level.
You probally want to use it on mewtwo because it is level 70
At the Pokemon league.
Elite 4
find a place that has wild Pokemon the same level as it.
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.
I would definitely say bugsy's Pokemon gym in azeala town or ilex Forrest