To max out a Pokemons stat, do you have to have the right nature plus max EV's or just EV's?

Question

To max out Dusclops defense to 394, do I have to have a defense nature plus EV train it in defense?
Because if it's enough to do/have one of them I have an idea to make dusclops defenses alsomt like shuckles.
if I first max out dusclops defense to 394 at level 100, give it an Eviolite wich boost both defenses 50% wich would make Dusclops Defense (hopefully also Sp.Def if this works) to 591!!

Answer 1

This is the formula for stats:

To max a pokemon's stats you must have:

-31 IVs in that stat.

-252 EVs in that stat.

-A beneficial nature. ( for defense, you would need Bold, Impish, lax, or relaxed)

-Be at level 100. (you can set DS wifi battles to do this part for you)

(Max HP requires everything here except for the nature, since there is no HP nature.)

Comments

Thanks a lot DT!
btw you don't happen to have an idea get Dusclops ultimate Defenses?

Answer 2

If you literally want to max out Dusclops' Defense stat, than you must have:
- A Defense boosting nature
- Max IVs in Defense
- Max EVs in Defense (252)
- And since it's a Dusclops', the hold item Evilolite of course

If you just want your Dusclops' to have the best potential in Defense and don't plan on re-breeding, just have everything except the max IV's in Defense.