Pokémon X & Y super training ?

[BumblebeeCody*]

I think there's something more important that you need to know before doing EV training, and that's IVs.

What are IVs?
IVs
1) IVs stand for Individual Values.
2) IVs show how much potential Pokemon can reach.
3) These actually have hidden numbers that you can't see(much like EVs).
4) IVs also have a limit. Each stat can only reach 31 IVs

Why is this important?
Simply put, your Pokemon will be able to achieve maximum stats at level 50/100. EV training the Pokemon is one thing, but if they don't have the IVs, then they're still pretty much useless, even if they are EV trained.

To make this easier you can follow along with me, go to Pokemon Showdown: 
New Team
Add Pokemon
Type "Lucario"

About:
Set the level to level 100
Any Gender
Max Happiness
Shiny...your choice
Specs:
Leave the item alone
Any ability
and leave the moveset alone

You've just captured
Lucario (at level 100)

(In Pokemon Showdown click on the EV section(green and yellow bars))

Lucario style:
Lucarios are generally sweepers. Sweepers is a term used to define Pokemon that serve no purpose other than to hit hard and fast. Alakazam and Gengar are special sweepers as they specializs in being fast(Speed) and using special attacks(Sp. Attack). 
Lucario is a physical sweeper as it specialises in Physical attacks(Attack) and being fast(Speed).
You would generally EV train a Lucario in Speed and (Physical) Attack. 

So for this example you'll want to give your Lucario (in Pokemon Showdown) 252 EVs in Attack, 252 EVs Speed and the remaining 4 in HP. Also, make sure that you give Lucario 31 IVs in each stat

What's the difference?
The results are as follows:

At level 100 Lucario is a beast. Very good stats.

However let's do the same but with random IVs. IVs that you'll most likely have since you haven't bred for IVs or RNG abused(I'll get back to this later). 

As you can see, at level 100 this Lucario sucks Pokeballs. It's not worth using since at level 100, even with EV training in it's right stats, it's still nowhere near as good as a perfect(31 IV) Lucario. 

Hopefully now you can see why having a Pokemon with 31 IVs is important. As I said before, even if you've EV trained it, you need to have right IVs to make the Pokemon most effective. 
Is that it?
Nope unfortunately there's more, however this is much simpler to explain. 

Natures.
Natures are important because they also limit a Pokemon's potential but only for 2 stats. 
Here is a Pokemon Natures table.
In the cases above, the Lucario has bitchin' stats but it could be slightly better. We know that Lucario needs to be a Physical attacker. From looking at that table I post(in the link), Serious has no beneficial stat gains. If Lucario is a Physical attacker it needs a nature that will slightly boost it's Attack or Speed stat(your choice). 

For this example I'm going to boost Lucarios attack by giving a Lucario Adamant nature. Adamant nature boosts physical attack while lowering his Special Attack. It's perfectly fine to lower Special Attack because it won't be using any special attacks. So a Lucario with an Adamant or Jolly nature is what you're looking for.
The difference is as follows.

Lucario now has boasts an incredible 350 attack. However this is: if the Lucario has the right Nature, IVs and EVs. This is the setup you want to be going for. 

Which means?
You cannot EV training effectively without these being set first. IVs and Nature come first. 

Wait so what do I do?
First find the Pokemon you want. (Lucario)
See how the Pokemon plays. (Physical sweeper)
See what nature you want that would benefit you (Jolly or Adamant)
The IVs you'll want to give it are 31 in everything. Special Attack can be any number since you won't be using special attacks. So basically five stats with 31 in each.
Then you can finally EV train


So how do I get IVs?
You don't. Unfortunately this is no way of getting a perfect Pokemon unless you know what you're doing. You will never catch a Pokemon with 31 IVs. You have to RNG Abuse or Breed. (I don't plan on writing a guide on breeding tonight, sorry).

I'll leave it there for now since I'm tired. I'm willing to help you with Pokemon breeding and even give you your own perfect Pokemon as I breed quite often since I play competitively. Feel free to ask for some Pokemon. It'll give you a good insight on what you can achieve.  

Also, yo can clearly tell I'm having a fucking blast with the formatting on this forum. FRIKKIN' SLOWPOKE BULLET POINTS, MAN!