An Interesting 10 Ban System

1. Each team bans 5 champions at the same time, one for each player.
2. Each team cannot see what the other team intends to ban.
3. After 30 seconds, the bans are revealed.
4. Any champion which is banned by both teams is combined as a single ban on that champion.

This allows the number of bans to range form 5 (both teams ban exactly the same champions) to 10 (10 unique champions are banned). On average around 7-8 champions will be banned all in a 30 second window.

ALTERNATIVE: If the number of bans is less than 10 (not every ban was unique) the ban process is repeated where the players on each team who where in agreement on bans get to ban for another round of 30 seconds. In this case the number of bans can range form 10 to 15. The 15 ban case might seem like a lot but note that 5 of those bans where champions which both sides did not want to see in the game.

Thoughts?