User blog comment:TheTobarMethod/So...Tri-Force Vayne lol?/@comment-4442345-20130306223047

Here is the thing... Triforce and Sheen damage are based on BASE AD. This is why I don't understand Ezreals and the like getting it. Vayne however, has a HUGE BASE AD growth every level. Any extra health she gets is invaluable too, since she has such low hp naturally (which on other carries with reliable escapes, it really isn't needed on). It is pretty much a well known fact that she can't chase like she used to be able to without her ultimate, so the slow is helpful.

There really isn't a "wrong way" to build Vayne. (Except for attackspeed rushing, which you shouldn't do with any ad carry but some people do anyway...) I mean heck, there are plenty of ad carries that have items that synergize perfectly with their kit but most people overlook options.