Hi,

Vayne is one of those kind of champions who if has good a good score in the initial game can do a lot and can be a greater threat during the late game. I wouldn't say that Vayne is OP. But would rather say vayne is a good carry.

Like others said, Vayne is a very weak early game champ. Quite possibly the weakest early. With that said she scales hardest late game and doubly so with BotRK. She is one of the hardest ADC champs and also the lowest health pool of the carries. Vayne is in no way OP. In lane, she is expected to lose lane but a good Vayne has no counters except those that scale into late game and outranges her by double like Corki or Kogmaw. Like all champs, she is specifically vulnerable to CC and gap closing bruisers. If you are reactive and smart about positioning, it is actually hard to lose. Against skilled opposing laners, they will apply heavy pressure on Vayne to prevent her from snowballing. If vayne gets good AD and survives till late game, she is immediately a huge threat assuming you are good. You should run cleanse with her 90% of the time and play very smart. Even if she's a monster late game, she can be killed very easily.

A vayne player that knows how to use her mobility is a scarry thing. I had a vayne dive inner mid turret. I used Leona's ult to stun her, then jumped to her and stunned her as the first stun wore off with my shield activated. when that stun wore off she used her knockback to stun me into a wall and the she tumbled out of turret range and my shield explosion to live with like 10 hp.

That being said, if your going against vayne having multiple stuns is needed in lane and then your adc must be able to get the kill while she is stunned because if she isn't dead by then she can just roll away to safety with her kit.

listen guys im not saying vayne is op all i said was 9 times out of 10 i get fed when i play vayne. i have went against every support in the game and i was also paired with every support in the game. i have played vayne for a pretty long time now and like i said i never called her op because she has any flaws i was just stating how strong she is and wanted to know if you guys thought she was op or not

http://www.lolking.net/champions/vayne#statistics
Vayne has one of the lowest winrates of all ADCs.
She was actually up for a buff in PBE.