You mean Morde? Oh boy did they just go full retard with the rework. With all the reworks,actually.
Morde as an adc replacament is just dumb because he will get poked and kited to death and he won't outlevel the opposing lane regardless of his new feature (gets full xp in duo lane when he gets the last hit) because he won't be able to safely farm,but I guess somebody at Riot just threw their arms up in the air,yelled FUCK IT,GIVE HIM A PET DRAGON and called it a day as if that fixes anything.
Skarner is just tl;dr retarded

not even gonna go into details,the patch log for him just speaks for itself.
Darius was already slow and easy to kite,now they removed what little movespeed he had(passive),limited his passive stacks to autoattacks and made his Q delayed. Also they fixed his "bug" with E,where you could still pull people who flashed away if it was timed correctly,at least they said they were going to fix that. That's really a smart thing to do to a champion when everyone else has 100 dashes and blinks.
Garen would have been fine if they just gave him the "Villain" mechanic. Instead they went all the way and played around with his entire kit. Basically,nerfed Q silence duration,reverted W to season 1 status except worse,gave E more "ticks" lategame but nobody cares because once silence wears off,everyone will just blink out of it; also E deals less damage when hitting multiple targets xD for a while it was even
slowing Garen down by 20% while hitting someone,but people called Riot out on their bullshit and they reverted it.
For now I'm only reading patch logs and not actually playing because wow,what a fucking mess that is

I really like all of these champions and all of them are getting Olaf'd for no reason. inb4 next Riven/Lee Sin gets released and they become even worse than they already are...
Also the whole "no replay system/sandbox mode because we like to suprise our players" is just disgusting. Even pros got pissed off about it.