You can train your Pokemon by battling Wild Pokemon, fight new Trainers, or fight new Gym Leaders. It is recommended that if you are going to battle wild Pokemon, you should fight Pokemon relatively close to your Pokemon's level. Fighting new Trainers will provide more Experience Points than fighting wild Pokemon, though, making the training go by quicker.
Train or use the VS seeker.
i train my Pokemon to lv 100 without AR, i train my Pokemon on routes 212, 225 using the vs seeker hope i helped
You need the vs seeker because you can't rematch trainers without it you would have to constantly beat the elite four to train your Pokemon. Have your Pokemon hold a lucky egg while training it.
Use vs seeker and train at six/seven islands, maybe......
There are various good places to train flying types in Pokemon Platinum. A good thing to do would be to use the vs seeker.
you should train in stark mountain if you have batteled every one use the Vs seeker if you don't have it just train with wild Pokemon
Make use of the VS Seeker to assist with your leveling. Or you could just train.
How far are you in the game? Victory road always works, or using your VS seeker. Or, you can EV train. You can search the information if you want to ev train. It can boost stats by a big chunk each time you level.
At the Pokemon league.
Victory Road or Past Trainers Using the VS Seeker
elite four again and again.worked for me
You have to train it up to level 40.