I feel Fiora could become League's highest skill cap champion.
As the grand duelist, it's only fitting when Fiora's reworked that her summoner be forced to have a hard time controlling the most skilled fencer in all of Runeterra.
Why? I feel that Fiora's character does not pity the weak. If the summoner in question is not up to her caliber, she would be extremely ineffective. In fact, when she's reworked, I hope that she'll become the highest skill cap melee champion in the game.
I go as far as to say I hope that her kit will have so much depth and be so intense that even the highest level summoners that we know today in professional play won't be able to master her mechanics easily.
After all, Fiora won't settle for anything but the highest display of combat skill in order to prove to herself and the world that her family's name lives up to its honor, untainted by the detestable acts of her Father.
"I came here seeking a challenge—is this the best these fools can offer me?"
basically