Taking a champion you have very little or no experience with to ranked play create bad games

This is a serious overlooked issue in ranked play that creates bad unfun toxic games many times over, ESPECIALLY during champion releases and reworks. I lost plat series two times during Gnar's release and what was the biggest contributor to that? Someone buying gnar and taking them top with no play experience prior.

If you want to learn or experiment there is plenty of avenues for that. But learning a champion takes a lot of time. Most diamond players have a small roster of champs they play for a reason, and if you're taking a champion you don't know into ranked you're essentially lowering your skill level an entire division or more and it creates many many toxic games daily.

These players should be reported for unskilled or there should be a new report option for players that you can confirm via lolking or other sources they have never played or played very little (at least on that account). People playing new champs consistently die 3 or more times in lane and lose their turret giving you a fed champion to play against and if it's bottom lane there's really almost nothing you can do to right the game back, a game that was supposed to be closely matched and would have been, had they been playing a champion they actually know.

I realize that this happens to you and against you and that sometimes you stomp a lane because someone was doing that on the other team. However for all players this creates grindfests and frustrating play experiences.

tl;dr There should be an additional report option to report players who take champions they don't know to ranked play, and this should come with reinforcement by Riot staff, preferably a temporary suspension from ranked games citing playing champs you don't know as the reason.