Talk:Quinn/@comment-26372435-20150505162227/@comment-15031918-20150505165744

Runaan is good on ADCs that have a passive ability that procs effects (Caitlyn, Twitch & Varus comes to mind), or ADCs who are more reliant on auto-attacks than the others (again, Twitch. Some auto-attack based AP carries such as Kayle or Twisted Fate may be seen with this item in hand).

The reason Runaan on Quinn isn't a good idea in my opinion is that she and Valor relies more on burst than attack speed. Usually, having both Blade of the Ruined King & Youmuu's Ghostblade active is enough attack speed for Quinn. Let's not forget that the more ranks you have in your W, the more bonus attack speed Valor gets during Tag Team, so having Runaan might be too much (that and Valor can't use Runaan's passive, but that's another story).

On ADC Quinn, I would use about the same build as if I was going Top with her, but with more burst and less sturdiness : BotRK, Youmuu, Berserker's Greaves, BT, Infinity Edge & Guardian Angel.