I think Vayne should be redesigned, not nerfed
I feel like they mashed two competing concepts into one champion, and it doesn't make for fun gameplay. I personally have loathed Vayne since Season 3, and am hoping that maybe this time they'll fix her long term problems. Anyways, it seems like she has two different aspects, and they don't seem to go together well. Her first champion identity is a hard to catch assassin ADC. Her tumble, condemn, and ult all play heavily into this identity, and it seems like a fascinating and fun base. Tumbling around and being slippery is a good base. What is not ok is to strap a massive tankbusting steroid onto that. Vayne has the potential to be an interesting assassin, but is held back by the stupidity of her silver bolts. She has the tools to select a target and kill it, then disengage. I really would like to hear a Rito employees viewpoint on her current state.