A Hardcore mode?

I've been playing League of Legends for 7-8 Years now and have never seen a truly balanced game ever. Personally I thought it was the champions that were doing it and some of that is true, but after a bit of pondering I think Riot's biggest issue with balancing champions is the Runes & Masteries as well as the Summoner Spells. Some champions are weak to some spells, and some are broken with the right set up. I propose that they create a Hardcore 5v5 mode with no Runes & Masteries or Summoner Spells to create a more challenging game mode. I feel this type of mode would make balancing champions easier on riot because they'll be removing certain aspects that give champions the advantage over the rest. Dota Allstars didn't have this many variables and that's what made it and still makes it a fantastic game to play on WC3 (Yes a lot of people still play it) This mode might even appeal to newer players because it's less information for them to take in to play the game, sometimes simple things are better.