The Vayne nerfs......*facepalm*
Obviously Riot has no idea what they are doing with Vayne at this point, and what I mean by this is the newest nerf to her on the pbe. Her Q's AD ratio was changed from 30/40/50/60/70%, to 10/25/40/55/70%. This has to be the absolute dumbest nerf I have ever seen. I don't know what Riot's thinking was behind this change. I agree that Q should be nerfed, but the way it was nerfed makes zero sense and is pointless. The problem with Vayne, or at least the problem I see most especially in other discussions, is her ability to 2 or 3 shot squishies late game. This is possible because her current build path is crit chance, and her absurd AD buff from her ult + her Q ratio buff, make her do unnecessary amounts of damage. This nerf doesn't hit the target problem, her mid and late game burst. Her burst comes from her Q. This burst does not exist earlygame and in the laning phase, yet Rito finds it appropriate to nerf Vayne at the point of the game where she isn't a problem, instead of looking at the point in the game where she is a problem. Who wants to level an ability that lets them do an amazing 6-8 bonus physical damage. Seriously. Her Q scaling at later ranks needs to be nerfed, and her Ult's bonus Ad needs to be nerfed. Those two things (plus shyv) are the reason why Vayne is even remotely a problem.
Then there is the second nerf. This nerf makes be happy. Very happy. But also confused. Because I can't fathom how they can come up with such a crappy Q nerf, and then an excellent Ult nerf. The nerf to her ult is that her Ult's stealth Duration was cut in half to 0.5 seconds.
The ult nerfs, imo, are a step in the right direction. They hit an issue that has been a major frustration for a long time and this change gives players more windows of opportunity to fight and outplay her, as well as it removes any synergy her ult had with Duskblade. The Q nerf is nonsense and needs to be retracted so a proper, sensible nerf can be implemented. Her problem is her burst later in the game, and that is what they need to target.
EDIT: I forgot her Q can crit now......another reason it needs nerfed, and why it is broken.