I have not gotten Mastery 7 on any of my champs yet, however, I have Mastery 6 on a few of them. I have Mastery 6 on 
, 
, 
, and 
. I have 1 Mastery 7 token for , , and , but I need to know the best ways to get S or S+ so I can get more Mastery 7 tokens.
Just get good at the champion. It's called 'Champion Mastery' for a reason. If I had it my way you'd have to get MR6&7 in Ranked or have an extra Mastery Tier that shows what level you actually play that champion at. I've played Kled all of 3 times and I've had an S every single game. It's not hard.
I got a 20/1/15 and 290 cs in 25 min and I only got an A+. I accutally don´t get the system.
play the champion in a role that they're not usually played.
I played 
. Easy S bby
It compares you to how other players performed on that champion in that role.
Perfect farm Take towers, dragons and heralds. Make sure to kill more than you get killed. In summary: YOU carry the game.
Play the champion in an off role and do moderately well for example I got my level 7 twitch off of mid twitch. Though in general you wanna focus a lot on cs and kill participation and objective participation
just play whatever you want to get the S rank with in an offrole. That is the easiest and fastest way
Since it compares your performamce with otjers on that specific champ, I suggest trying out extraordinary builds! Example, I got easy S's with Fleetwork Crit Garen(my adc's couldn't simply compare with me. >:D) and Conqueror Ap Yi. I even tool a herald and pit it on mid to distract the whole enemy team away from my bot lane. 1v5'd, ez penta. So yes, using unusual builds makes it a lot easier for me to score S'.
master yi is very easy to get a s or s+ in random q. how ever with new patch the best build i like is 
+
then 
+
+
,last you can get 
for little tank. I know people call me crazy on this but 30/5/4 and 23/5/9 is a good prove fro my idea*[slayer-jinx-catface]*
do you know how attacking baron for "getting health back" or "killing people on the go" (two auto attack) feel like? try that build in custom first then u will never want to play other champ in lol*[slayer-pantheon-thumbs]*
Play really well. Don't die, get kills and cs (more or less are needed depending on your role), etc. They won't tell us exactly what's in the formula since they don't want people gaming the system to get tokens but not help their team win.
Literally the easiest question in the world. With the easiest answer. Hands down the fastest and easiest way to get an S is through funneling. Grab a duo, make him go Lulu and funnel you in the jg. even veigar.. just to prove a point ive funneled braum 5 games in a row and got an S every single one.
Play selfishly and cs a lot. Just play really safe and watch the map so you don't die a lot
You either have to play extremely selfishly or play something in an off role. Last year I went like 6-6-10 on AP Shyvana mid and got a S.
