User blog comment:Zararthur/(CHAMPION CUSTOM UPDATE) Miss Fortune/@comment-1330314-20150521023758/@comment-24674556-20150522222217

I tried having the base damage be magical just to make things a bit simpler, but I've figured out there would just so little physical damage (the base numbers were already nerfed 400/600/1000).

Besides, the in-game tooltip for that would probably list base and Impure Shots together and then the AP magic damage.

(...) dealing BASE(W%) physical damage and (AP) magic damage (...)