I find it strange that I never have trouble against Vayne.
Supposedly she's broken, supposedly she's literally unbeatable. But I don't seem to recall ever really having trouble against anything but the best Vaynes I face. Could it be possible that you just have to change up your playstyle slightly to zone her out early and make sure she falls behind, then using pinks and CC to lock her down and kill her?
No, surely not.