Deaths are overrated and assists underrated in deciding grades in champion mastery
You will probably have a better grade by scoring 4/0/1 than by scoring 9/3/6. My other problem with the way it decides the grades is that it does not (or at least not enough) take into consideration the "impact on the game". What I mean is first of all, the objectives, but also, say for example, a player dies to save the carry from a Corki or Caitlynn ultimate, this would decrease his final grade. The system asks to be selfish, this should be changed