User blog comment:Zilla4444/AP Version of Black Cleaver/@comment-188.141.60.154-20120617180638

Abysall Sceptor is simply better in every way including price, efficiency, and passive.

Also, in its current state, it's synergy with Abysall is far too powerful. Stark's Fervor and Black Cleaver were extremely powerful on champions that could capatalise on their early game advantages such as Tryndamere.

Despite a lack of interest in this item, a better passive would be one similar to Soraka's Starcall, applying a lower MR reduction, with higher stack cap, but less stacks applying for AOE abilities.

A very rough example would be: a standard ability applies 3 stacks of -3MR while an AOE ability applies only 1 stack of -3MR with a total cap of 15 stacks.

Make the recipe a Needlessly Large Rod and a Kindle Gem and reduce the AP to 80/90.

Even still, Abysall is the existing equivilant to Black Cleaver, however the need for magic resistance reducing items is currently non-existant.