Rengar revert
As many of you may know, Rengar has been reworked for the reasons of being toxic to play against. Some may think his rework may have fixed that but I personally believe that the rework wasn't executed as smooth as Riot believes it had.
I cannot represent the thoughts of everyone but I have heard from many users that they still think that Rengar is as toxic if not MORE toxic than he used to be. < this problem mainly stemming from his CC immunity and his passive AD scaling as they both can be abused in a solo queue type situation where both teams are unorganized.
I also cannot represent Rengar Mains old or new who has played this game but I believe that a quick look at the RengarMains subbreddit and the amounts of high Elo one trick Rengar Mains (Priest, etc. if you'd like to see more names who left, view the subreddit.) who've left will show you their opinions but A reccuring point I see in the subreddit is mainly that the players do not enjoy the Q changes at all as many argue that "Rengar does not feel as smooth as he used to feel", or "I miss the skill depth that the Q allowed in combination with his other spells."
Who I can represent is myself though. Although I am not quite a Rengar main, I've played enough Rengar to the point where I can make this argument. Rengar needs a change. A change where both Mains and non Mains can agree upon. A change that will lead Rengar into the right direction.
Rengar needs a rework that'll allow the Rengar Mains to still be able to preform tricky combos that are both satisfying and smooth with the depth old Rengar had while allowing for counterplay. Riot knew this and tried to rework Rengar for the better and tried to give him lots of counterplay but instead made him extremely hard to play against with the addition of the CC immunity and other tools given to him. I think that Riot should revert the rework and change some minor details or give Rengar another rework that'll make him both fun and rewarding to play as but with having counterplay