User blog comment:Centuriarch/Different ADC build./@comment-13372515-20140314084810

Runaan's actually a pretty bad item unless certain conditions are met. I definitely wouldn't build it on every single marksman. However, there are champs whose not only multitarget DPS rises by using Hurricane but single target DPS as well. The champs I can recall right now are Cait (passive loads faster), TF (same as Cait), Twitch (Enemies getting hit both by the ult and Runaan shot) and Jinx (Fishbone's explosions overlapping). Another great synergy is using the bow with Stattik Shiv, again, it will charge faster. But if you are not playing these kind of champs, champs who can exploit Runaan to the extreme, there is actually little to no benefit of buying it.