Miss Fortune's ult has felt awful for over a year

MF's ult was terrible until it was changed to physical damage. After seeing play (perhaps too much play) for two years with a physical damage ult Riot hit her with several change that crippled her ult and her early game. Not only did her ult's damage get lowered, it also had all of its AD scaling removed in lieu of applying stacks of Impure Shots. This backloaded damage on her ult, making the most damaging part the part least likely to land or even come out if someone can force her out of it. It also made all of the scaling on her ult magic damage. That made her itemization incredibly awkward, as she previously focused on stacking AD and pen and now that pen was made far worse.

She is an immobile, average damage ADC with almost no crowd control. She has seen almost no play for over a year since the nerfs. Giving slightly more damage to perfectly lined up Double Ups and the ability to reactivate her passive in exchange for losing Grievous Wounds is not going to change that. Her niche as a lane bully has been largely overshadowed by other ADC at this point, but none of them can bring the sort of AoE damage to a teamfight that MF used to be able to. Tying her ult to Impure Shots feels like a failed experiment, and now that Riot is looking at tweaking MF it would be nice if they could tweak her in a way that gave her her niche back.