Vayne is definitely out of meta and even under-powered?
Honestly, i consider myself a pretty decent vayne player and enjoy her mechanics because they express my aggressive playstyle, but come on, her early game is shit which we all know. She is indeed a high risk high reward. However; lately i feel that she has become a High Risk moderate reward champion. There are champions like Lucian and Kog Maw who have an easier early game and require much less skill yet perform equally well or maybe even better than vayne. She needs a buff to her late game in order to restore her prime last season where she was a hyper carry. Now she is just any other adc without really any interest to play her except for the challenge that comes with it. Vayne is very fun, interesting, and well... unbalanced due to the new champions and buffs/nerfs that have shaped this meta. A meta I actually think is the worst meta league has experienced. (My opinion)