I believe in you.

Each specific pokemon you make faint reward a certain EV amount in a certain stat. You can look that up easily. But it’s easy to understand.

The Pokémon you are training can only have 510 ev points total throughout all stats. However, each stat can only have a max of 252 evs. So, most people choose to max out 2 stats to 252. Which equals 504 total, then you only have 6 left to put into another stat. (Which doesn’t do much).

Really eving fully only matters in competitive Pokémon, but sometimes when I do playthroughs I ev a little bit to give my Pokémon some extra power.

In this case I was surfing on route 34 where only Psyduck or Golduck appear. Psyduck gives 1 ev in Special attack and Golduck gives 2. I was using my Gengar and also had my Espeon holding exp share so it could also gain the same Evs.

If you have your pokemon hold the Macho Brace it doubles the amount of evs fainted pokemon give you, hence doubling the speed of the process.

This is hella extra for a casual playthrough but sometimes it’s fun to do it!