Okay (THIS IS GANA TAKE VERY LOOOOONG)EV training is quite complex, but the rewards of EV training a Pokémon well are great. you can make a tyranitar lighting fast, an infernape a defensive wall, etc.
the concept is, when a Pokémon faints another Pokémon, it gains exp points, AND EV points. The EV points and type of EV point depend on the Pokémon fainted.
So, say you battled and killed a wild geodude. geodude gives 1 EV point to defense. So the Pokémon that fainted it gets 1 defense EV point. 1 EV point wont do anything; however, if you battled, say, 100 geodudes, the Pokémon that fainted all them would recieve 100 EV points to defense. that Pokémon will have vastly grater defense than a Pokémon of the same species that hasnt reciened any defense EVs.
a single stat can hold a MAX of 255 EVs per stat. further more, a Pokémon can only recieve 510 EV before EVs have no effect on it anymore. therefore, you should plan out how you distribute EVs to your Pokémon to get the desired stat rise you need.
Battling 255 geodude would become very tiring, so instead you can give it some vitamins (IRON, to be precise) irons will give 10 evs to the stat that it says it will raise. there is a catch though. you can olnly give a Pokémon a max of 10 vitamins per stat. therefore, if you wanted to give yer, say, infernape max defense, you could give it 10 irons to get 100 defense EVs, but the other 155 EVs will need to come from battling other Pokémon.
EV training, along with selecting a good nature for your Pokémon, can make give your Pokémon a HUGE stat increase, if you play yer EVs rite.
go to seribii or something
and look at a Pokémon. Along with its attacks and base stats, it will also tell you how many EVs a Pokémon gets if you faint that particular Pokémon.
by the way, if a Pokémon is holding an exp share, both the Pokémon that fainted a Pokémon as well as the pokmeon that is holding the exp share will recieve EVs. the EVs are not split, everyone who batled/had an exp share will get the same amout of EVs, while the exo points are split.
basically, if a Pokémon gets exp points, it also gets EVs points, BUT the EVs are not split, like exp points
(AND YES I GOT THIS FROM YAHOO ANSWERS LOL THERE IS NOOOO WAY I WOULD SPEND MY TIME TO WRITE THAT MUCH LOL.....NO OFFENSE....shoot caps lock is on
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