New Fiora W is going to be a problem.
Completely immune to damage and hard CC for .75 seconds and stuns you if she blocks hard CC? Good luck ever fighting her if your champion is reliant on an ability that is even remotely telegraphed. You can't Zed ult her, you can't Garen ult her, you can't Darius ult her, you can't Fizz ult her, you can't Vi ult her, you can't ever knock her up as Yasuo and thus can't ult her, Pantheon can't stun her, Renekton can't stun her, Maokai can't root her, Gnar can't ult her, Aatrox can't Q her; I could go on.