There is a GD conspiracy to nerf Fizz

Everyone is complaining about the freaky fish guy when he's merely decent. There is that brothel reject Katarina running around, an overbuffed Graves one-shotting anything that moves, Azir and Cassiopeia (no longer fun to play or play against, but with hugely inflated dps values) are a pair of lategame monstrosities who can ignore the laning phase at no cost, and all anyone can think about is that half-pint who telegraphs his engages, has no laning phase to speak of against the most popular mids (Zed, Lissandra, Xerath, Syndra), sacrifices safe waveclear and has a goodish lategame that pales in comparison with the aforementioned freelo gods.

Long story short, turn away from your FIzz obsession and count how many games Katarina wins through sheer retardation that is her passive combined with no cast times and blurry, confusing animations.