easy experience!!!!
Ok, so as you through the game, there is a double battle with the news reporters gaby and ty. You battle them above mauville, to the right of mauville (need surf), and right from fortree. They have a loudred and magnemite the first time you battle them, but everytime you DO battle them there Pokemon get higher level, hint hint. Anyways just keep battling them for a while and you will have high level Pokemon in no time, please rate this, it is my first post
Somewhatruler
We have more cheats and tips for this game here, Pokemon Emerald cheats