Maybe for the first time,*gulps intensely* Vayne should get small buffs
The only reason to play Vayne in this day and age is to -kill tanks -murder bruisers -hard carry -hyper mobile but she falls off with shoddy early especially with her more prominent lane bullies in the meta she only brings a long CD disengage/stun spell,this is better then nothing though a lot of adcs don't even have utility to begin with
My idea of a buff is Q mana cost 30>25,its her bread and butter spell really but generally early,mid,late game she tends to spam it at every point of the game all in all this would help a bit
I don't have any ideas of the specific numbers but reduce her base AD slightly(to emphasise weak early) But increase her AD per level which should turn into a flat out buff(to emphasise strong late game)
could also use some love to help her out.

