[PokeMMO Guide] Pokémon Effort Values (EVs)

What are Effort Values?

As Pokémon battle, in addition to gaining experience points they also obtain Effort Values (usually referred to as EVs), which are special values in each stat (HP, Attack and so on). Each Pokémon you battle against gives off EVs in one or more stats.
Generally, this relates to the Pokémon's strongest stat - for example, if you battle a Geodude your Pokémon will get one EV in the Defense stat. If you fight a Gengar, you will get three Special Attack EVs.
Newly-hatched eggs and Pokémon caught in the wild - regardless of level - have no EVs and thus act as a blank sheet for EV training. Any Pokémon that has gained experience points from battling will have gained some EVs.
Every 4 EVs obtained in a particular stat equals one more point for that stat, by the time that Pokémon reaches level 100. At low levels you may not see all the points added straight away. If your Pokémon is at a high level you will see a lot of additional points going on to the appropriate stats at each level up.
In total a Pokémon can gain 510 EVs, but only 255 in one stat (that works for the original games, in PokeMMO is 252). Since 4 EVs equals one stat point, if you want to max out a particular stat it's only useful to get 252 EVs (63 points). The last 3 EVs would be wasted.

EV-boosting items

Battling 252 Rattatas to max out your Speed would be a bit of a bore, no? Luckily, there is an array of items that can help you reach your goal much quicker.

Vitamins

These items give your Pokémon 10 EVs in the corresponding stat.
  •  HP Up (HP)
  •  Protein (Attack)
  •  Iron (Defense)
  •  Calcium (Sp. Attack)
  •  Zinc (Sp. Defense)
  •  Carbos (Speed)

Macho Brace

The Macho Brace lowers a Pokémon's speed in battle while held, but doubles the amount of EVs gained. A Rattata normally provides 1 Speed EV, but with your Pokémon holding the Macho Brace, it will receive 2 Speed EVs.

Exp. Share

Since any Pokémon gaining experience points gains EVs, the Exp. Share item allows Pokémon to gain EVs without battling. It will gain the same base EVs that the Pokémon in battle gains.

EV training tips

Start young.
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.
Spread EVs out a little.
Many guides you will see will tell you to max out your EVs in two stats (e.g. Attack and Speed) and forget about the rest. But this can leave some vulnerabilites.
With Speed, unless you're Jolteon, you're not going to be able to out-run everyone (and you don't need to), so try saving some EVs for other stats.
Maximize HP×Def and/or HP×SpDef.
The damage your Pokémon takes is directly proportional to the product of HP and the appropriate Defense stat. Therefore with defensive EV spreads you should put more EVs into the lower stat. Snorlax, for example, has a high HP and so-so Defense, so putting more EVs into Defense than HP will result in a higher overall defense.

EV-reducing berries

There are also a set of berries that will reduce your Pokémon's EVs. They are useful if you miscount EVs or simply want to change the EV distribution:
  •  #21 Pomeg Berry (HP)
  •  #22 Kelpsy Berry (Attack)
  •  #23 Qualot Berry (Defense)
  •  #24 Hondew Berry (Sp. Attack)
  •  #25 Grepa Berry (Sp. Defense)
  •  #26 Tamato Berry (Speed)
Each berry will decrease the EVs by 10.
We have a post which helps you planting and growing specific berries, click here and take a look.

EV training locations

We have a special section which helps during your EV training, click here and take a look.

EVs in older games (games from the Nintendo consoles)

The EV system was completely overhauled in Generation 3 (Ruby/Sapphire). Prior to that, battling a Pokémon would give you Effort Values equal to its stats. For example, Dragonite would give 91 EVs in HP, 134 in Attack and so on.
You could gain up to 65536 EVs in every stat (HP, Attack, Defense, Special and Speed), so you didn't even need to consciously EV train - you'd normally gain all EVs by the time you reach level 100.
The number of stat points resulting from the EVs was the square root of the EVs divided by 4, meaning that the total number of extra points obtainable was about the same as it is now, 63.

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