Perhaps Fiora needs a change?

Now, I may be a Fiora/Riven main but when I say Fiora needs a change I don't mean she needs a buff. I'm not writing this after having a bad Fiora game. I just really think she needs a change to be functional in teamfights. First I'mma talk a bit about Riven. I have tons of bad Riven games but I know she's not in such a bad situation to need a buff. Adrian Riven may have quit the game but it's because he doesn't like her current playstyle. Riven needs to constantly put herself into specific situations: pushing at the right times, roaming at the right times, flanking properly and positioning perfectly according to your team, etc. It's difficult but not impossible, and if it's done right ALMOST EVERY game is winnable with enough skill, albeit with extreme difficulty. There's lots she can do in teamfights and splitpushing if she plays 'right'. There's just very little margin for error. FIORA, on the other hand, is almost completely useless in most situations. Let's look at what she CAN do. She has extremely good 1v1 and 1v2 potential, and is good for skirmishing 2v2 or 3v3. She has strong splitpushing. That's about it. Splitpushing is only useful if your team knows what to do WHILE you're splitpushing. It's not a one-all solution that can be used in every single game. Teamfighting is every bit as important as splitpushing. However, Fiora can't do anything in teamfights. She's extremely squishy and easily bursted even if she builds defensive items. The REASON she's so squishy is because she's been given a god-tier defensive skill - that 0.75 second parry, so she's extremely weak when it's down to compensate. This, again, makes her ridiculously good in 1v1s, but in teamfights 0.75 seconds of immunity may as well be nothing, because there's still an entire team's damage and CC that'll come your way. So clearly she can't frontline, but she doesn't have what it takes to flank and burst the enemy backline. She only has a single dash that's not quite as good of a gap-closer as literally every other champion in the game with dashes, and her burst damage cannot always get rid of squishies without a big item lead. Also, the second people catch her in the backline she gets bombed way too quickly to 'really' do anything. She has high single-target damage, yes. But in teamfights she can't focus this damage onto squishies. If she's putting this damage onto a tank, everything aside from the true damage may as well be negated. The ONLY thing good she does for her team is her AOE heal on her ult which she can only really put on dying targets or targets that were caught out - in other words, she's only useful in scenarios where your team ALREADY has an advantage. No matter how well a person plays her, you can't carry teamfights even with a literal infinite amount of skill. There's really not much that can be done apart from splitpushing. Personally I think she needs some way to actually be functional in teamfights. If you look at other bruisers, they all have some strong ways to influence teamfights. Jarvan, Jax, and Riven have AOE CC's and defensive abilities (Jarvan shield, Jax AA immunity + tons of armor/mr boost, Riven shield), Camille has a ridiculously good approach for catching squishies along with a passive shield, AOE damage, and the weirdest 'CC' on her ult that can obliterate squishies by dividing them from their team. Darius has lots of AOE damage, an AOE CC, Garen has AOE damage and a movespeed buff to approach. So for the most part, a majority of bruisers have a better approach than Fiora, more AOE damage and CC's than Fiora (Fiora has literally no AOE damage and no hard CC's aside from her extremely specific parry-stun). They all have much better defensive abilities for teamfighting as they aren't locked in place and they aren't CC'ing themselves for the time they're using it.

Man this is getting long and I'm kinda forgetting what I'm writing about.

Fiora has basically been focused down into becoming the 'perfect 1v1 champion' but because of that, EVERY situation outside of 1v1's, 2v2's, or maybe even 3v3's are completely against her favor. She's been molded too far into the character idea of having a champion that's an extreme duelist and nothing else, that she literally can't do anything else. She's been made into a champion that is really good at 50% of the things in the game but completely useless and may as well be AFK for the rest of the 50%. She's a splitpush-only champ now and needs teamfight functionality even at the cost of her ability to 1v1.