[{quoted}](name=God Fishy,realm=EUW,application-id=3ErqAdtq,discussion-id=JrIF00HE,comment-id=00050000,timestamp=2016-09-20T19:18:07.105+0000)
I understand what you mean completly when you say that you should focus her in teamfights
I didn't say that, what I said was that it is always an option. She can't attack you safely.
and that its easier than against Ez, cait or ashe. But its easier said than done
Any and everything is easier said than done.
and yea armor and hp does help, but not against her W, hp only makes her need to deal more AD if she wants the same dmg% against you
So what youre telling me is that I can control what vayne builds and who she is most effective against?
, but her DMG against tanks is mainly True dmg, and her dmg against mages or non squishies is Phys.
Her damage against a well built tank is close to 15% true damage with AD and closer to 30-40% or 50% if she's ahead.
which is actually COMPLETELY FINE
What her ability actually does is reduces the effectiveness of defensive stats by some percentage based on her attack speed and how often she can actually afford to attack you. There is nothing wrong with this. There is no situation in which building defense against vayne does nothing and if vayne is forced to build attack speed then this will limit her build options as well.
Squishies can just kill vayne they don't need to stack a tone of 25% (on average) less effective gear.
If they can't kill vayne then they need to do the same thing they always do when they cant fight an adc, avoid them. That's what boots are for and that's why vayne gets no free escape once she goes in unless she's wasting her ult for it.
I don't mind her shredding tanks, and this is just a hurried thought up alternative im not saying it should be like this. It is a suggestion. In my opinion she should get reworked when the most needed champs are out of the way, champs like urgot. Because her W is unhealthy.
Her W actually is very healthy. All adcs should probably have something closer to vayne's W which recently they tend to because riot also recognizes that vayne is actually the one with the clean design. If anything is wrong with her its actually that ult of hers
Besides the armor only defends against her 180 max AD most vaynes don't build more than that. But they have att speed around 2.00+ i want vayne not only to be played Attack speed but also dmg because her kit allows a balance between the two, but because her W is so much more rewarding than building a balance, why try at all? there isn't a reason to get more AD, because what you might need you get with ur ult.
against tanks her W is more rewarding if they don't or can't hit back. AS vayne gives you more chances to interrupt her damage since she cant just toss a chunk out at you or change which target she focuses too much. CC counters attack speed vayne.
The problem with most ppl versing vayne is that they keep stacking defense after they have enough and then vayne shreds through your diminished returns like it was nothing.
That's right, I said defense has diminishing returns. Not in the literal sense but in the value sense.
Your build is

which one is more likely to help you win
or another 
the answer is situational but a lot of bad players just cry and stack another
like an idiot so they can cry some more about how they did everything right and vayne is just unfair because they are a tank when in reality the tank just needed to help their team burst the bitch down and put her on a 60 second death timer at this point in the game, especially since their build was shit to begin with