Special gametype idea

So this game type would start the same as normal with picks and bans. Whenever a champion dies however, that champion is dead for the game and the player must pick a new champion with all of the gold from items converting on a 1:1 ratio. This game type would be somewhat chaotic but not really that much more than urf. I think it would be a great way to get a lot of practice on a lot of different champions and how they fare against each other.