What the hell is up with the "S" rank grade
I simply dont understand it, I go 11-0-1, with Darius, highest minions slain, try to keep wards up the entire time and assisted with at least 3 towers being destroyed, to only end up with A+. The game before this was 9-1-X something with a fair amount of assists, high minion count, ect. I'm just not getting it, I can do extremely well and even at times carry a team, but end up with a "B".
Feeling as though I'm getting scammed out of "S" ranks...