How I feel about the Mastery scoring system after my last game

Playing support Team won the game 20 minute match 1 kill 0 deaths 7 assists

• out of 15 total kills for our team Highest kill participation on team Assists on tower destruction Assists on dragons

Mastery Grade: B https://media.giphy.com/media/pYI1hSqUdcBiw/giphy.gif

I mean, I'm not saying I should have gotten an S grade - but I think that was at least A-worthy gameplay there!