One extra ban should suffice for the amount of champions in League.
There are around 124 champions now. That is A LOT of champions. We are still in the 3 bans per team. I believe for healthy champion select we incorporate at least one more ban to better justify what teams don't what to see from this very LARGE champion pool. The only 3 bans still leaves open a lot of other champions that people want to see banned and the pool is too large. One counter to this problem could potentially hurt the diversity of the game and might bring back people playing the same champions again and again. What about a test on PBE Riot? Any suggestions please do comment, thanks in advance! :)