User blog comment:QuantumFeint/Tanky meta... or is it?/@comment-24420226-20150426224436

Last I checked, Vayne had something like a 15~20% pick rate in Soloqueue (depeding on rank). While she did not benefit from IE changes, she still enjoyed a lot of the other changes in the mid-season ADC itemization adjustment. Like the buff to Ruined King's on-hit %hp damage, as well as the Phantom Dancer Boost; Vayne has a really strong mid-game power spike with BotRK+Zeal that works well for skirmishing in tight spaces (like near dragon pit).

Additionally, to say that an ADC falls off lategame is misleading: by nature of a Crit+AD+Attack Speed build, all ADC's scale very strongly into lategame compared to other roles. At six items they begin delivering upwards of 400 damage with targeted attacks every 0.5 seconds or so. A 'lategame' ADC is just a relative comparison and while yes, Kog'maw and Vayne are notorious for being lategame tank-killing DPS machines, any ADC can gain similar power by building a certain way.