User blog comment:RoznosicielCiast/Is Siphoning Strike too strong?/@comment-6102571-20131105104115

That passive needs a nerf. For a champion that you have to prevent from farming, he has way too much sustain. You either have to have high burst so he can't stay inlane because your next burst will kill him, or you need to have better sustain and force fights all the time. If you're against Nasus, often only thing that happens is that you lose farm by trying to keep him from farming.