Can you guess the gutted champion by the Winrate drop?

https://i.imgur.com/DUKWWqv.png[/img]

Hint: according to some boards users, this winrate should've went up about a week ago because, in their eyes, this champion was overpowered and "deserved" the gut it got. Of course, because it made no actual f*cking sense, this winrate did NOT go up anytime after 9.18 and is still THE WORST in nearly every elo nearly everywhere in the world in the most played lane of this champion.

Bonus hint: this champion might be able to break 's two records of "champion ruined the most often by pro-play" and "champion with highest number of reworks" at this rate in some years.

Edit: oh no, by looking at the downvotes, it seems I've triggered, yet again, the people wrongfully hating on this champion who think this winrate drop was deserved! Hmm, who could be this mystery champion??!