User blog comment:Typhron/Something Something Quinn./@comment-24792363-20140630171903

definitely the black cleaver should be built before last whisper. in fact there are several blogs on this lolwiki showing that last whisper is generally most effective when your enemies are very tanky naturally, or are stacking armor to deal with you black cleaver. the base stats that BC give are much stronger with its stacked passive than is LW early-mid game. this is especially present when you consider the number of aoe moves that Quinn has, as she is able to debuff the entire enemy team with the reactivation on her ult, not to mention her aoe blind. plus a bit of health as an adc is never bad, no?