Stop nerfing and changing champions when your god awful items are the problem.
Most of all - stop changing shit for the sake of changing it.
But anyway - as the title says. Yes there are champions that need to be nerfed and adjusted, but riot is literally sitting there balancing the game around items, and not champions.
Oh you lowered Ekko's base damage? Fantastic, that still does absolutely nothing. SFC/IBG and other tank items still allow him to remain nearly unkillable with his kit.
Top lane sucks, it used to be fun. Outplays used to happen, now losing lane means absolutely nothing because EVERY champion can simply itemize fast enough to act like it didn't happen. (Looking at you ZZROT). It's not fun. I highly doubt anyone disagrees with me on this.
You just continuously change champions, either A.) rendering them to shit. Or B.) doing nothing. You've yet to figure out that you literally can't balance them without adjusting or ridding of items as a whole.
Not enough research is done as to how items interact with every champion, and how MANY can simply abuse it.
??
It's making

stronger than they really should be. If buffs/minor compensation needs to happen, so be it. But right now, that is a huuuuge balancing problem for AD assassins/fighters/Lucian.