Mage Fortune

TL;DR: Add a reasonable AP scaling to MF's W to buff Mage Fortune without affecting the balance of AD Miss Fortune.
AP Miss Fortune is viable. I play her in Platinum and have climbed to where I am now with her, in my promos to Diamond. If there was a small quality of life buff to her she could even be competitive!
The problem with her currently is that her W scales off of AD and does magic damage while her R scales off of AP and does physical damage. Late game this means your ult doesn't scale well with MPen because the W magic damage is minimal.
If her W were to scale off of AP also, it would not affect the balance of AD MF, but would give AP MF some much needed magic damage.
? Granted, it doesn't give AP, but it'd be a decent substitute for void staff if you want your ult damage to be up the roof.
