User blog comment:Freedfg/Is vayne TOO versatile?/@comment-6000413-20130723104716

Vayne is not so broken as she would seem, but I thinks she needs some very smll balancing and I'm not really talking about damage.

I would personally set the cooldown of tumble (Q) at 4s every level and change the scaling to 10/25/50/65/80% AD, reducing her lategame mobility but increasing her early game, while keeping nearly the same sustained damage throughout the game and reducing the effectiveness of invisibility. So you should tumble at the right time, not everytime you can late game, but you could use it to engage, exchange and disengage since early game. I would increase the flat true damage for silver bolts and keep a constant scaling with health, since health already scales late game and a higher flat would help her early a little.