First game Karthus vs Mastery 7 Katarina. Feeds her 6 kills, calls for ff15, flames the team and then leaves. Sounds familiar? Thats because this happens basically every second to third game!
So why not make it so in ranked games i can only pick champs i have at least mastery 5 on so there is at least a chance everybody sorta knows what they are doing? Would be nice. Would also be fair. Would also make sense.
I have mastery 4 on LeBlanc, soon to be 5. And that's just from arams. I have no clue how to play LeBlanc against most match-ups, and in general just don't really know how to play her other than her combos basically.
Just because someone has a champ at 5, doesn't mean they know how to play them.
Would be nice. Would also be fair. Would also make sense.
Nice? Maybe. Fair? No. Make sense? No.
First of all; Mastery Rank is not accurately indicative of player skill with a given Champion - especially not Mastery Level 5. The only prerequisite to Mastery Level 5 is that you play enough games as the Champion to raise a meter five times, taking longer each time it fills. You don't have to win a single one of those games.
On top of that, you can have someone who's Mastery Level 5 who gets absolutely demolished, just as you can have someone first time a Champion and do obscenely great at them. Is it luck? Is it genuine skill? Who fuckin' knows.
And on top of that, if Mastery Rank 5 was a prerequisite to Ranked play, you'd have to reach Mastery Rank 5 on 20 Champions in order to play Ranked Summoner's Rift.
You gonna crank out that many games on that many Champions - some of whom you may not even play?
Besides - having such a prerequisite would not only make Ranked needlessly hard to get into, but it would lengthen queue times considerably - because, again. Twenty Champions. Mastery Rank 5.
And if grinding those Mastery Ranks isn't boring enough, I'm certain you'd die of boredom when the queue times drag on for lack of players who have MR5x20.
So, lemme correct my first statement.
Nice? No. Fair? No. Make sense? No.
you know what elo the 
with the most mastery points in the game is?
Bronze FOUR
mastery level does not mean you know what you're doing
Because mastery only determines how many matches you've played as a champion, not how well you play them. If I play 50 games as Kindred, being shit tier ever match I'll still gain mastery points, only at a slower rate than someone actively trying to improve
No it wouldn't make sense at all
because counter picks are a thing.
I got an S on Kayle this week by bringing her bot lane. first time playing her in years. my entire team picked 3 assassins and a brand, so picking any ADC was pointless.
In addition to what Umbral Regent says, if you were autofilled into a position, there is a good chance you don't have a champion with a high enough mastery for the position.
Unfortunately you're going to get downvotes from people who treat Ranked like it's Norms and think they should be allowed to play a champ they have no recent experience with to the detriment of their allies if they underestimated recent game changes.
I'd say Mastery 2, since there's no excuse whatsoever, after this long, not to have mastery on a champion you claim to have played before Mastery was introduced.
once i got filled top. i don't top, ever, so i had to use someone i didn't have a high mastery on. might have been 3rd game on malph tbh. we won
If this goes through, I can literally only pick 
because of how littlw time Ive spent on this game.
You want to make this game all for the people who are on it 24/7 instead of for everybody, and thats why this is a very stupid idea
It seems normal to me that a 1st timer would feed a 1 trick 6 kills.
