To make the process even faster, you can purchase one of the following vitamins to increase a desired EV by ten. They cost 10,000 each at Chansey Supply stores in big cities.
You can often max out the EVs by level 20, which leaves the Pokémon free for use in-game; it will also be stronger than normal. Don't lose Pokérus. If your Pokémon get the Pokérus, always keep a few with the virus in the PC to pass on to future Pokémon you wish to train. Use vitamins early.
LuY6G.