- The Effort Values or EVs, are hidden vallues that indicate the amount of training that a Pokemon has made. Whenever a Pokemon defeats another Pokemon in an internal battle (wild or trainer, not link battles or battle tower), it will earn a number of EVs depending on the species of the Pokemon defeated. The limit that a Pokemon can earn is 510 EVs, which equals 64 Effort Points. A Pokemon can earn up to 255 EVs per stat (HP, Attack, Defense, Speed, Special Attack, Special Defense) which is 32 Effort Points. Even though 255 is the max, it appears that 252 will be sufficient to one given stat. This will give you a couple extra to add into another stat. Not that it helps much, but every little bit helps.
- If you are EV training for speed. Zubat\\Golbat gives +1 to speed. Battling 4 Zubat\Golbats and acquire 4 EVs for speed, when your pokemon levels, it will gain an extra point for that stat. For every 4 EVs earned, the respective stat is increased by 1 point. Battling 255 Zubats\Golbats will give you the maximum EVs alloted to speed.
- There are several things that help cut ddown on the time and effort for EV training. One of those are the stat enhancers (HP Up, Protein, Iron, Carbos, Calcium, and Zinc, respectively) that increase the EVs of the respective stat by 10. They can be bought for $9800 each. Each stat enhancer only takes effect if the EV for that stat would increase to 100 or less. If you attempt to use an item and it states that it will not help, your pokemon already has 100 EVs in that given stat. Its a way to get 100 easy EVs, however it is at a price. Generally speaking, if you are at a point of breeding and EV training, money is not really a matter. You can easily make enough to cover the costs a hundred-fold.
- The Macho Brace and the PokeRus virus arre two other ways to decrease the time and effort spent on EV training. Each will respectively double the EVs that a Pokemon will earn. From the above equation, using the Macho Brace, will cut the amount of Zubat\Golbats you need to battle to 128. The PokeRus virus, will do the same. If you are lucky enough to get the PokeRus virus, using it in conjunction with the Macho Brace, now cuts that amount down to 64. If you used the stat enhancers, it will be even less. The PokeRus virus is not common and is a rare find, even rarer than a Shiny. With a 3 in 65536 ratio, which is roughly a little more than 1 in 21845. Sadly it is not available in FR\LG, so it would need to be traded into the other games. There are other things that happen when traded in, but won't be discussed here.
- Breeding is a key factor for one that iss going to be properly EV training a pokemon. Breeding and then using 10 of one of the stat enhancers will give you an easy +100 in a given stat. Its also easier to EV count. That will allow you to know the amount of EVs you have in a given stat. Also by breeding, it will allow you to gain only the desired EVs by fighting the right battles, and keep unwanted EVs out. Also when EV training certain pokemon, its best to attempt to get the right nature for a given Pokemon. That way you get the right Stat Increase in the stats needed and the decrease in the ones that are not. Such as a Jolly Nature. It gives + Speed, - Special Attack. You'd need Jolly for a pokemon that needs high speeds but no real need of a special attack. This is just for an example.
- Using Exp.Share gives the same amount off EVs to each participant in defeating a Pokemon. The Macho Brace and the PokeRus virus have no effect on this distribution. So using them will not give give the bonus EVs.
- Rare Candies are the devil! They do not take EVs into account when increasing stats. Use rare candies to get to level 100 ONLY after you have maxed your pokemon's EVs.
- Several pokemon give weird EV stats, so it is best to avoid these unless they are in your favor. Such as a Venusaur which gives +2 to special attack and +1 to Special Defense. So you will need to watch out for that.
- In the Emerald version, certain Berries can decrease a Pokemon's effort values by 10 (Pomeg Berry, Kelpsy Berry, Qualot Berry, Tamato Berry, Hondew Berry, and Grepa Berry, respectively).
- Do not pay attention to stat gains at Leevel ups. It just gives you changes since it was calculated last, not actual gains. Leveling up, evolving, vitimins, EV reducing berries (from Emerald), and depositing into a box are all times that it is calculated. It also takes into effect the species' base stats, level, EV\IVs and nature.
- Check out This for a list of what pokemon give what EVs.
EV Links of Interest
http://www.psypokes.com/dex/evtraining.php
http://www.psypokes.com/lab/evguide.php
http://www.psypokes.com/dex/trainersguide.php
http://serebii.net/pokedex-rs/ev.shtml
http://db.gamefaqs.com/portable/gbadvance/file/pokemon_rs_trainer.txt
http://db.gamefaqs.com/portable/gbadvance/file/pokemon_frlg_ev.txt
- Also called DVs, Deter Values, and also many other names.
- Quickest way is to use Serebii's IV Calcculator. http://serebii.net/games/iv-calc.shtml
- Individual Values range from 0 to 31. Thhese values are important in determining the Pokemon's final stats. There are six Individual Values for HP, Attack, Defense, Speed, Special Attack, and Special Defense. They are randomly determined when you encounter a wild Pokemon or obtain a Pokemon internally.
- These formulas are not directly used in the game, as the Individual Values of a Pokemon are already available to it and hidden from view. Thus these formulas can only approximate the IVs of a Pokemon. They are from the in game coding\hex and derived from the indentifier that Pokemon comes with. They each come with a 32 bit identifier, generated at random, which determines significant information about the uniqueness of the Pokemon. It tells the pokemon's Nature, Gender, Shape of Unowns, what certain pokemon will evolve into such as wurmple (cascoon or silcoon), abilities, IVs, EVs, stats, Hidden Powers, Encounters, Damage, experience, and even whether or not it is a shiny. It also tells more about the pokemon, but its irrelevant to the topic.
IV = ((ceil(S/PV)-5)*100/L)-2*B-floor(EV/4)
where:
ceil(X) = round up
floor(X) = round down
S = Stat (not the HP stat, which has a similar formula, see below)
PV = Personality, derived from the Pokemon's nature
L = Level
B = Pokemon's base stat
EV = Effort value for stat
HP IV = ((S-L-10)*100/L)-2*B-floor(EV/4)
The PV depends on the Pokemon's nature: it is initially equal to 1.
If the nature increases the stat by 10%, the PV is 1.1.
If the nature decreases the stat by 10%, the PV is 0.9.
- Theres a lot that influence the stats yoou will finally have at level 100. Persistence is key. You'll just have to catch wild pokemon with good IVs, and constantly breed and train to get higher IVs, but at the same time of you having chances of breeding for higher IV pokemon, you can also get a pokemon with lower IVs. So take caution and train and breed properly. Be persistent if you really want good IVs. This is another place where breeding comes in handy, however thats a whole other topic with various influencing factors. You should basically get the jest of it.
- You'll want to also look into other facttors such as Personality Values or PVs.
IV Links of Interest