Just as a refresher (hopefully you've already read this on our previous news articles!) - 10 bans is coming worldwide very soon (and infact has already went live in NA!)
Due to the change in numbers, this means the requirement for ranked has also changed.
**You now require 20 owned champions to play ranked** (up from the previous 16).
This is necessary to avoid a situation where a player has no champions to pick (It's a worst case scenario, but not impossible).
Don't know about 10 bans? Unsure of what's going out? Check out the announcement post [HERE](http://euw.leagueoflegends.com/en/news/game-updates/competitive/10-bans-regular-play-coming-soon).