Poketransfer it by the facility after you defeat N and the Elite4 and then raise it to level 100.I have a really good strategy.Keep going across the Skyarrow bridge while you have a Pokemon in the daycare because when you have finished,you can run on the second to outside tube of the battle railway.sellotape the B and the down button.Leave it in the charge and go to sleep.Also if you want to gain EV`s,fully EV train your Pokemon before you apply anything here.