My Thoughts on Fizz
Please buff his late game at least back to what it used to be. I understand assassins fall off but it shouldn't be so feast/famine. You have basically no chance to sit there and wait for W after 2 seconds in a late game fight. It's such an awkward idea.
You're also incredibly dependent on landing a fairly easy to dodge ultimate (which can also be blocked or QSSd) and champions so reliant on a single ability nearly always have major issues in terms of either strength or perceived game health. If that one ability is incredibly strong to compensate for the high unreliability, people get mad when blown up by it and think "Wow, that's so busted!!! How is this possible!!??". On the other hand, if it's dodged, they just think "Of course I dodged it; I"m a god and this Fizz is bad." Thus, what happens is that said champion starts getting banned a lot and people with bad experiences bandwagon on the "busted" train because they selectively remember the highlight reels etc. instead of how most games actually go.
I used to play a lot of Fizz but I just find his kit clunky and less fun now. I know people hated playing against him pre-rework but he feels just as useless as Kassadin now. What's the point of playing a melee champion with a shit lane phase if you also fall off so hard late game and just generally have other champions do your job just as well without those penalties. A LB can one-shot an ADC in the same way as Fizz without putting herself in anywhere near as much danger or slogging through a shit lane phase. Syndra can too from a massive range albeit with potentially more danger to herself. Ahri can also pull off the same role as Fizz while having again a better lane phase, safer waveclear and the ability to poke too. Fizz has no objective purpose right now and as competitive proved, was never really all that strong despite the complaining.