What does it take to get an S
I am a yasuo main since mid season 5 so not too long. Since a week after champion mastery level 6 & 7 came out ive been trying to get an s- or higher with yasuo. Yesterday I went 18/0/8 and taken 4 towers. I am concerned because me and my teammates thought i deserved an S- or higher. Instead i get a normal A.