I said it once in a comment and i will be happy to say it again on this post
Riot makes many good improvements, changes and balances that we Players are happy about.
the assassin rework however is gutted
4 big changes, 6 small ones. and half of them are failures.
fizz got a rework, tank build's still kicking around
shaco is Build as a bruiser with triforce
rengar is reclassified as a fighter and Leblanc as a mage
and akali feels forgotten as a champion just like kassadin did at the beginning of Season 6.
lethality went out of control and itemchanges have been proven unhealthy for almost a year long now.
Before the rework, assassins may not have had a window of opportunity to be countered, but JUST to have that they gutted half of their entire goal quite literally. rengar is sitting at an disasterous place and has become even harder to balance than before his rework, Leblanc despite finally having done it right and focused the damage on the sigil has however suffered so hard in the damage Terms that she is considered a meme and a joke now, and fizz now makes people cry WITHOUT killing them even.
if you ask me, riot could have just made smaller updates. the main Problem with pre-rework rengar was his full crit Build and his ultimate being too hard to Play against. simply give him the Camille treat. make his Q unable to crit but raise the scalings a bit or even give it a pure full ad scaling like with darius' W, remove his W heal aspect but give it something else to go with, maybe make it a 0.5 second fear? and Keep his ult the way it is now and slap onto him a mix of pre-rework and post-rework bonetooth. maybe something that gives him just slightly more AD but boosts his skills instead, maybe at a certain amount of bonetooth stacks you get increased ad scalings on Q, at another number your W will fear longer, i haven't thought it through yet but as he stands now he is really NOT stable nor ok.
as for Leblanc, i would say give distortion back SOME of it's power and make her passive stronger, maybe shorten the charge delay from 1.5 to 1 second.
as for fizz, they at least started working on that one, so one good Thing at least.
shaco idk what else to say, old shaco was perfectly fine.
akali's passive is her issue, making it a two-hit passive with the damage being the last of the two hits feels so.....unfitting. when she Q's R's and then AA's you and instead of achieving the burst she was meant to have she rather gets sustain the target probably procs or gets something to defend him vs her passive's second hit, which delivers the damage and survives in many cases.
AND HER E STILL DOESNT FIT HER KIT!
long story short, riot messed up assassins bad enough that anyone with descriptive Analysis could write a book at the size of the old testament JUST describing what went wrong. they Need to rethink what they did and possibly consider the revert of at least rengar, while keeping small changes of his rework in his kit.