ok, well, if you catch a Chansey it has a 5% chance of holding a Lucky Egg. if you let your pokemon hold it, it will get more exp. points in battles.
I've never done this but it was my back up plan for me when I was going through the league for the 2nd time. go to your home and give your mom all of your money, then just go through the pokemon league like normal and the pokemon that you do beat will give you good exp. and when you do white out, you'll only loose the money you got from the Elite 4. then each time, you can go further.
oops. well,
Mewtwo says "I like to wear shorts cause they're comfy and easy to wear".
Lucario says, "Holy crud, where're my shorts at man?!"
Mew says, "Ooh, such lovely legs!"
LOLmy 3DS FC is 3883-5881-5417