Solo Carry Champions.
I am not a balance expert but i have played a lot of games on my account,what i have noticed is that no one like the idea of a champion that carries the entire game by himself,the assasins everyone remembers going in 1v5 killing the adc and thus winning the teamfight single handedly is a concept that is deeply flawed and probably never coming back to the game.
Which explains why champions like
and sometimes
are banned from ranked games,the solo carry mentality is toxic,no one likes getting carried and no one likes getting his entire team destroyed by 1 champion.Even now in the "tank meta" the majority of the community is barely banning most of the tanks pro players ban keeping champions like yasuo draven and darius always in the top 5 banned champions.So here are my 2 cents about balance,the pbe changes on yasuo will just make his situation worse,instead of keeping a permabanned champion in a bad state for a while so that people will stop banning him riot plans on applying some changes that will most probably turn into a buff and keep him banned for the rest of the year.