Effort values, or EVs, are points earned by a Mon through battle, vitamins, or other means. EVs raise a Mon's battle stats. A mon can have a total of 510 EVs, with a maximum of 252 in any one stat. When a Mon has reached the maximum number of EVs, the "EV" at the top of the stats summary page will turn red.
Due to effort values, trained Mons are usually stronger than wild Mons, even those of the same level.
Defeated Mons give out 1, 2 or 3 effort points to a particular stat, depending on species. The points given by each Mon can be seen on its website Dex page; the number and color of squares correspond to to the effort points given. However, in battle formats that do not give any experience (such as in the Battle Tower), Mons will not gain any effort points.
The contribution of EVs to a Mon's stat is calculated by dividing by 4 and disregarding the remainder. At level 100, a Mon's stats will be one stat point higher in a specific stat for every four effort points gained in that stat. Therefore, ignoring natures, you can add 63 points to a stat (at level 100) through EV training.
Mons gain effort points at the same time as experience, so when a Mon levels up mid-battle, the newly gained EVs will be factored into the new stat. Additionally, stats are recalculated at the end of every battle, so EVs gained after a battle that did not result in a level up may still cause the stat to increase. Therefore, Mons can gain EVs from battling even at level 100.
Various items can be used to increase EV gain or reset EVs. Vitamins and feathers are consumable items that add EVs to a Mon's stats. Similarly, the EV-reducing berries are consumable items which remove EVs from a Mon's stats. Finally, there are several held items which increase EV gain from battle by applying either a multiplier or flat bonus of EVs.
|HP||HP Up||Gain 10 EVs.|
|Attack||Protein||Gain 10 EVs.|
|Defense||Iron||Gain 10 EVs.|
|Sp. Attack||Calcium||Gain 10 EVs.|
|Sp. Defense||Zinc||Gain 10 EVs.|
|Speed||Carbos||Gain 10 EVs.|
|HP||Health Feather||Gain 1 EV.|
|Attack||Muscle Feather||Gain 1 EV.|
|Defense||Resist Feather||Gain 1 EV.|
|Sp. Attack||Genius Feather||Gain 1 EV.|
|Sp. Defense||Clever Feather||Gain 1 EV.|
|Speed||Swift Feather||Gain 1 EV.|
|HP||Pomeg Berry||Remove 10 EVs.|
|Attack||Kelpsy Berry||Remove 10 EVs.|
|Defense||Qualot Berry||Remove 10 EVs.|
|Sp. Attack||Hondew Berry||Remove 10 EVs.|
|Sp. Defense||Grepa Berry||Remove 10 EVs.|
|Speed||Tamato Berry||Remove 10 EVs.|
Note: EV-reducing berries are not yet functional in Pokéngine.
|HP||Power Weight||Gain an extra 4 HP EVs from each Mon defeated in battle.|
|Attack||Power Bracer||Gain an extra 4 attack EVs from each Mon defeated in battle.|
|Defense||Power Belt||Gain an extra 4 defense EVs from each Mon defeated in battle.|
|Sp. Attack||Power Lens||Gain an extra 4 special attack EVs from each Mon defeated in battle.|
|Sp. Defense||Power Band||Gain an extra 4 special defense EVs from each Mon defeated in battle.|
|Speed||Power Anklet||Gain an extra speed HP EVs from each Mon defeated in battle.|
|Macho Brace||Doubles EVs gained from battle. Applies to all stats.|
Note: Held items are not yet functional in Pokéngine.
The process of intentionally raising your Mon's EVs in specific stats and avoiding others is called EV training. EV training can be done through use of items or battling, or a combination of both.
EV Training Locations
Some routes or other locations are especially good for EV training via battling wild Mons. These routes will have a high chance of encountering Mons that give the desired EV. The best routes are listed below by region.
|Stat||Location||Mons||Total Encounter Rate of Desired EV|
|HP||Wild Beach||Pupsea (1 HP)
Blubbark (2 HP)
|Attack||Route R6||Poochyena (1 ATK)
Tinion (1 ATK)
|75% at night
65% at day
|Cyton (1 DEF)||100%|
|Rock Smash||Minilith (1 DEF)||100%|
|Sp. Attack||Ceropia City (surf)||Ostrodd (1 SPA)||100%|
|Sp. Defense||Totora Town (surf)||Tentacool (1 SPD)
Note: Other surf areas have a total of 53% SPD instead
|Speed||Route R1||Sparruff (1 SPE)
Skurrel (1 SPE)