New game type: Semi-Blind pick

So the champion selection system works like blind pick, everyone chooses at once. If there are no mirrors, the game launches, otherwise it takes each mirror individually and forces them to reselect . They can choose the same champion again the first time, but if they match up again that champion becomes banned. This game mode combines the fun of blind pick's randomness and draft's never get forced into a mirror matchup, while eliminating the counterpicking of draft mode. This is something that I've kind of wanted for a while, and I know it isn't that big of a change and that Riot is done with those extra game modes, but I'd still like to see it happen at least run as a test. Anyone else like this game mode, or does it just sound like a waste? How would you change it? Comment below, and as always have a wonderful day.