Gamemode Idea (Good Old Days/Old But Gold)

Soo,since League of Legends has changed a lot during the years,i started at season 2 and since then I have played the best game mode for me witch is URF and then One for All. Anyways. Since MY GAMEMODE IDEA WILL NOT BE TO COMBINE (URF Hexa or the rest) MY IDEA is to create a gamemode witch will bring ALL THE CHAMPS ,NEVER nerfed. Soo bringing back everysingle champion's abilities (by that i dont mean UNREWORKING THEM) i mean like they never got nerfed. anyone of them. That means Talon Kassa ,Leblanc get their silences, and super burst,KhaZix can 1 shot ,and have a 50% damage reduction.Rengar cant be seen in ult,THE TRUE AP MASTER YI the god of this game :v All these things.Lets not forget bringing back all the removed items. DFG,Force of Nature,Atma's Impaler,the mana potion senpai <3 .My favourite item FERAL FLARE. All those good things. This gamemode will actually show the differences between the champions then and the champions NOW. Recently ive been whining 24/7 about nerfing Yi. Then I looked up some old videos of AP Yi season 1/2 and then i never complained about a Yi nerf again.Having the fact the difference in Yi then and now is just huge,for me he got nerfed to oblivion,same for Kha'Zix, Irelia, Janna,Kassa. I would love to play the true side of every champion,it will be a huge fun if you ask me. P.S. also if the name [Good Old Days]/[Old But Gold] names aren't good ,you can give suggestions :)