Ok, so why should I beat the elite 4 again? And what's geistis' henchman?

They're stronger the second time, and missing two Pokemon slots in their teams have been filled with Pokemon from other regions. That and I think you have to re-battle them to fight Alder anyways.

Pokemon is one of those games you should never restart. In doing so, you lose all your pokemon and all your progress, especially when you've gotten a ton of pokemon. Plus, from time to time event pokemon are released that you can get by either connecting your game to the internet or to a wireless distribution like at Toys R' Us.

Oh gasp, they're stronger and they got new pokemon. I didn't know that ''sarcasm''
Alder who? Seriously, who's that?

Tell me more about that, and, I've heard that some legendary pokemon will be able to catch soon...

why'd you ask if you already knew the reason? :/
And Alder is the region's Champion.

...Anybody know if I should go with Hustle or Swarm? The accuracy loss in Hustle scares me, lol. Anyways wanna try raising a Durant, cause the one in the Battle Subway seems to outclass all my speedy Pokemon (seriously, even my Froslass?! o_0) and somehow takes out my teams. >_>

if you want something fast, I recommend a weavile, electrode, or gyrados (with the right natures and IVs can be tough though)

Yeah I know...but still something's not right about that Battle Subway Durant. (Boss Emmet I think)
I have pretty fast Pokemon, Froslass, Swellow, even a freakin' Accelgor...and that Durant always seems to strike first. o_0
And yeah, I do EV train as well...
EDIT: Anyways yeah, still wanna try an Durant...which ability should I go with? lol

well, pros and cons to both, Hustle gets you speed at the cost of accuracy of physical moves (which is what a durant should use) and swarm does nothing unless you at 1/3 hp or lower, it really comes down do whether you want the speed or the accuracy I think.

While we're on the subject, since it's durant's hidden ability, Truant is an abysmal ability

Wait, Hustle does Speed too? Thought it was just Attack...then screw Swarm. (and Traunt is an obvious ability to avoid. xD)

Hustle boosts a Pokemon's Attack stat by 50% while cutting their accuracy by 20%. The Speed stat is not affected by this ability, so ...

But Yasha-...bah, screw it...I'll still just go with Hustle. xD

Well, you can trust Yasha, or you can trust Bulbapedia. I know which one I'm going to constantly for information though.

Well I usually use Seribii, but it wasn't exactly clear, so...yeah. xD

I'm EV training my Leafeon and already maxed out attack, should I EV in speed or raise it's defenses?

gah I wrote that half asleep, sorry for the mistakes, it is power and now speed, and while we're on the subject, serebii isn't as good a source as bulbapedia, usually, sometimes it's ok, but not usually

...I'll just leave this here. (lol)
http://unrealitymag.com/wp-content/uploads/2011/07/pokemon-fa...

I started playing black again today. but now i really want to get into the competitive aspect of the game(s)
but i´m gonna need some tips. ive been hearing about some ev and iv training, but everything sounds so difficult.
and what pokemons are easy to start with?