http://www.surrenderat20.net/2017/09/912-pbe-update.html
What was Riot thinking, at least remove the invisibility if you are going to buff her that much. And she will still be doing 250% ad with crit + 50% ad scaling on q, not to mention 
making it worse.
Someone pleas tell me what the counter-play to Vayne is?! Kill her?! CC THE FUCKING INVISIBLE CHAMPION WITH MAX 28 sec ult!!! You can even run because she get's 90 ms from her passive!
Kowe The Ewok1 votesRiot loves ADC. Nerf mages into the ground. Nerf AP itemization. Give everybody more MR. Nerfs DPS mages until ADCs like Lucien and Corki (AD Itemization) are played in mid. WHAT? Cassiopeia is still being played after they introduced Adaptive Helmet just to harcounter her? Let's nerf her. THERE MUST NOT BE ANY DPS OTHER THAN ADC! (Also in mid). Wait - there's an ADC which isn't broken as hell yet? BRB gotta buff.
Azirious Mistake1 votesI think Riot is getting rid of Tumble's bonus damage being able to crit, if thats any consolation.
Eternal Torment1 votesfrom what i can see her W has been nerfed dude...it starts at 6% max health, but on the changes it shows that it has been reduced to 4%
they shifted her power towards her Q and R, having Q proc 50% base ad from Skill rank one instead of 30% at lvl 1 and then rank up to 50%
HOWEVER, yeah, her ult did become a Copycat of sorts, on that i can slightly agree. but it isn't really a buff, it is more like a balance change, they shifter her kit's power
Karn Bishop1 votesThe nerf i was expecting was increased time between each tumble so she is targettable, this seems like a net buff.
Sir Rouge1 votesThis may be a troll post (or you haven't read the changes well and just jumped to conclusions) but I'll reply anyway.
And she will still be doing 250% ad with crit
Umm, yes, like the grand majority of champions in the game.
not to mention
Those are items, not Vayne the champion, and are unrelated to the changes.
Btw, her Q can't crit anymore.
CC THE FUCKING INVISIBLE CHAMPION WITH MAX 28 sec ult!
No, the maximum duration is 16/20/24 seconds currently (at levels 6/11/16), which only occurs if 2 champions died already. You probably just read on PBE that her ult was 8 seconds and added 5x4 seconds to it (5 for the number of champs on the enemy team and 4 for the extra duration per enemy champ killed). You must have not read the tooltip. Even if the extra duration were uncapped, gaining stealth when you finished killing the enemy team wouldn't be very usefull lol
My point is, it's ok if you don't like how they're changing her. However, please actually look into the changes before jumping to conclusions and making everything seem terrible. Honestly, I think the changes are decent in trying to move Vayne away from a squishy burster and more into a tank killer, while adding some teamfight survivability (which she needs).
