[Dumb Ideas] World Championship Picks

We've noticed that some champions never get picked anymore. But in the Championships, we really don't see them anymore due to the meta. Why not add a small yet very crazy feature to the championships to make it more enjoyable for the audience? Why not make it so that when a team choses their champions, they cannot use those champions again in another match? Or the ones they have banned either. This does not go for the losing team as their champions and others not chosen to be played or banned as the winning team will still be playable for that team. So that means, as they rank up, they cannot play the same guys again. That means that now there are only 113 left. Or, if we want to, we can add the other teams in, but without the bans to allow 10 less meta champs. Now there are 111 left to play. The only problem is it makes it harder for teams. But this is the championships, so they should be very skilled at more than 3 champions. To me, I don't care, but I feel that something could be done to allow more champions like Garen to be playable in a World Championship.