The way to EV train with hordes is very simple! Probably the easiest way to EV train. There are requirements though. You must get all the power items from the Battle Maison or atleast the power items for the specific stat you want to EV train in. Next you want a pokemon with sweet scent for hordes. I also recommend to have a pokemon with a spread move such as earthquake (I use Charizard cause it also learns Fly) and an experience share. Now you are ready! Equip the pokemon you want to EV train its correct power item to the stat you wanna EV. Another thing that isnt required but that is very useful is PokeRus, if you can get it on the pokemon you wanna EV train, things will go a lot faster. Now Fly over to the right pokemon for the stat you need and kill their horde! The following pokemon are the ones i use for EV training.
HP EVs - Gulpin on Route 5
Attack EVs - Weepinbell on Route 19
Defense EVs - Geodude on Route 18
Special Attack EVs - Spinda on Route 21
Special Defense EVs - Hoppip on Route 7
Speed EVs - Murkrow on Route 16
Have fun with your fast EV training! Btw, when its raining on these locations you can try other pokemon with the same stat EV on this page http://www.smogon.com/forums/threads/a-g...s.3490052/ .
HP EVs - Gulpin on Route 5
Attack EVs - Weepinbell on Route 19
Defense EVs - Geodude on Route 18
Special Attack EVs - Spinda on Route 21
Special Defense EVs - Hoppip on Route 7
Speed EVs - Murkrow on Route 16
Have fun with your fast EV training! Btw, when its raining on these locations you can try other pokemon with the same stat EV on this page http://www.smogon.com/forums/threads/a-g...s.3490052/ .