Pre-Rework Gamemode

Say a Rengar main misses the old Rengar or a person wants to appear behind someone instantly and accidentally get a quadra kill with old Talon. There should be a game mode where you are able to play champions who got reworked the way they were before the rework for example: Rengar,Talon,Leblanc,Graves,Warwick,Ryze, etc It would be a very neat and nostalgic game mode reliving "the glory days" of those champions in my opinion. R.I.P Old Old Old Old Old Old Old Old Old Old Old Old Old