User blog comment:Zilla4444/AP Version of Black Cleaver/@comment-74.69.6.81-20120614113422

So the point of this item is to shred mres, and you say it would work well on a burst Ap champ. but by the time you could get this item the entire point of the AP champ is to burst down and immediately kill the AD or AP carry so even if there were two AP champs on the team they wouldn't be really taking advantage of the item because AOE skills don't proc it, and the carries should be dead already. So items like abysall scepter and void staff which provide just magioc pen are way more attractive. The only champ i can see really making good use of this item would be cass, but even then would it proc with her q or w? or maybe i'm just misunderstanding the itme completely