User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-4270771-20121121081421/@comment-5490997-20121121150056

^ The issue I have with it though that on someone like Cait it's not worth it to rush it or get it before any of your other core items, and by the time it is worth buying (when team fights start) your lane pushing power should be pretty strong already. And if your team can't keep enemies clumped together I doubt you will get much out of Runaan's compared to something like PD, I mean the AoE seems pretty small to me.

I can kinda see why Teemo and Kog might want this as core item, but that's not many champs... Only if a champ has some ability that works with it it might (!) be worth it, but for anyone who doesn't have that it's just a waste of gold.