Just let Fiora ult towers if you are so desperate for her to be broken
If she can use abilities on towers and crit on towers, really nothing is stopping you at this point.
While you at it let yasuo crit towers, why not, crits are his identity and so is being bullshit, so it fits perfectly.
ulti to towers so he can give
to all team that leads thousands of gold difference while keep spamming his R with his uncatchable mobility and invisibility and broken health refill and 2 cc abilities also able to dash over objects.