User blog comment:Zilla4444/AP Version of Black Cleaver/@comment-4434378-20120612185822/@comment-4434378-20120613134334

See but my issue with this item is that it overlaps with Abyssal too much. The only difference being that it is more of a late game item and only works on spam mages. Its just too niche.

And certain mages can AA in fights, take Annie for example who has long range AA's that she can use while she waits on CD's. Lichbane does get picked up on certain champs and this would fit with that.