zeds the most balanced mid riots ever made kappa
Zed has never made me nerd rage as much as Lee Sin or Diana mid in their prime but he can get pretty silly with his free poke that is extremely hard (for me) to dodge.
you're looking at it the wrong way tho, i never said he's good at trading against a mage because any ranged champion, specially ones with shields like lulu or ori, can just tank his dmg then auto him while he runs away. he can dodge your main spell with his e which makes him really difficult to play against with mids that have dodgeable spells. your examples here are kind of dodgy, cos like karma and ori and diana have shields to trade with him and also don't have a big "if i miss this i'm fucked" kind of spell like syndra or xerath or ahri or whatever. annie has a very easy stun to land even pre-6 and she also has her e. ziggs has an escape and is really long range. i'm not saying he has favorable matchups against all these champions but i disagree that he's weak against them because...
what i did say i said is that he has a ton of tools to survive your harass and then the kill pressure to discourage you to actually harass him. fizz dmg is pretty nuts, even early on, and it's so easy to land and the fact that he can ignore your cc is terrifying for immobile mages which means that going up for an auto against him is a always risky move. he dodges your one spell, you're helpless, and that's a ton of lane pressure your way, specially since he shrugs off a lot of auto dmg (usually one of your main ways to fuck over melee mids) thanks to his passive and because he has flask. and then he gets 6 and he can just try to kill you with zero risk by throwing his ult. he misses no biggie, it lands and it's a one shot kill.
a good option would be to push him to turret, but it also puts you in a shitty situation cos you're easy prey for lee sin and co. plus, pushing him out is pretty costly for most other mids too, someone like ori spends like 180 mana on qwe'ing a wave. like obviously it's what you end up doing but it's really easy for him to throw his fish out and set up or follow up a gank
so yeah, i never said he was zed in lane (zed is stupid), but he's FAAAAAAAAAR from weak
I think I understand better now. It may be that the champs I tend to like to play just happen to be good against Fizz moreso than others (I think Karma mid is probably the best Fizz counter in the game).
But are you taking into account that they did just nerf his early damage a fair amount to give him better late game scaling? Just making sure. That's why it's a net buff but his early game (especially since a lot of times he doesn't start Doran's) definitely hasn't improved.