@Riot I don't think MF is in a good spot

She feels really bad to use compared to other ADCs on live right now and her W not applying Grievous Wounds seems to hurt her a lot more than a movespeed buff will remedy. Please revert the removal or give her more scaling damage to compensate; or at the very least, give her X seconds where her bonus speed can't be disabled.

Shouldn't the E provide, like, a more intense slow the longer you stand in it? Or apply Impure Shots stacks, or just do more damage in general? Why did you even keep this ability as it was (with technically less utility since it has a shorter duration to slow people) when almost nobody thinks it's good? At the very least, shorten or remove the cast time.

I heard her ult doesn't apply Impure Shots anymore and I hope that's not true because that'd be a confusing design choice, but why does it scale with AP and only AP? Wouldn't a hybrid scaling and a change to magic damage serve both the AD and AP counterparts a lot better than AP-only with physical damage? If anything, I'd honestly rather have you balance her around being an AD champion and adjust her kit as such; AP is a fun off-build but you haven't really gone to lengths to preserve them both like you have with Ezreal who has been able to play both roles reasonably well

She's one of my favorite ADCs alongside and but it's really hard to pick her without feeling like I just gimped my team.

tl;dr Please use this opportunity to give her some much-needed buffs to compete since you didn't want to give her a rework