URF QoL Suggestion

Adding to the sea of URF QQ threads, I'd like to make a suggestion. Everyone has pointed out that there is pretty much an established pool of overpowered champs. Banning them outright doesn't seem fair for players who love those champs even before the mode. So my suggestion is to make it so that the game looks into your past URF history and prevents you from picking your last X (10?) champs that have been played in this mode. The downside of this would probably be people making URF-only smurfs. What do you all think?