you have to first connect to a wifi source by pressing on "connect to wifi"
and then you exchange fcs, and if you are on at the same time as the other person, you will see them in the wifi room below the pokemon center
then you can arrange whatever you want by going to the flashing screen in...
razor leaf is physical but leaf blade would still be better
empoleon- empoleon has horrible attack so replace it with substitute or agility to help you sweep. let it hold life orb or leftovers
yanmega- again, extremely low attack so replace steel wing and aerial ace with air slash and...