From: Luis_Sera89 | #098
You probably won't see Varus much in competitive play. When you're using his Q, you're reducing his all-round dps by not auto-attacking. If you just auto-attack, you aren't getting the extra Blight damage that he needs to compete with the likes of Graves and Vayne. It's a vicious circle.
Can't you just use Q as a blight proc/auto attack canceler though? No one said you HAVE to charge it to full every time. Though it's still there as a great poke when a tower is under siege.
--
http://i.imgur.com/ZhLrT.jpg
http://i.imgur.com/H6Frl.jpg