id say is to use experience share to put on a Pokemon who is not gonna fight or switch Pokemon before your training Pokemon gets hurt exp share at first leader place in the big tower place then talk with president.
Or feed them Rare Candies.
train it
I am not too sure.
Have a Pokemon that was traded to you then have the Pokemon hold a lucky egg and start battling your Pokemon will level up very quickly.
you have to train for a month or give a bunch of rare candies
train... train...TRAIN...
Train it as you train all pokemon.
you just catch and train alot of pokemon.Hope it helped!
You an train Pokemon in the grass
Train at victory road
Pokemon LevelBattling with the trainers or using too much Rare Candys also u can give the Pokemon u want to train an exp share.also put the Pokemon u wanna train in front then battle.on the first turn switch it to ur strongest Pokemon then kill the Pokemon.they will both get exp. rewpeat as many times as liked.thanx
you train Pokemon by letting it battle other Pokemon or you can feed it rare candies.
Train, train and train!