User blog comment:The5lacker/Varus is not a normal AD carry/@comment-6006137-20130612211839/@comment-6301771-20130612215619

Riddle me this: Why would you play AD Varus? You aren't going to get use out of...50% of his kit, more or less. The Blight damage and procs, procling blight from his E, the damage from his Ult, etc. Unlike other champs with castable AS steroids, Varus ends up poorly synergizing with crit chance and really doesn't benefit much from AD because, again, he has all of one ability with halfway decent AD scaling.

If you're going to play a pure AD champ, you have dozens of options. If you're going to play an on-hit focused champ, you don't have that many, and Varus is one of the few that can actually benefit from a bit of hybridization, namely Hextech Gunblade and Guinsoo's Rageblade, both of which synergize with his playstyle and grant him impressive sustained damage, as opposed to BT and IE Varus who gets...crapped on by every other AD carry in the game, so long as both players are equal skill levels. He lacks the CC of Ashe, the mobility of Vayne and Graves, and the variety of AD scalings of Draven. His only real advantage is range, which Caitlyn does phenominally better.

If you blindly pick a champ and doesn't take advantage of their unique strengths, you are wasting them.