Why does it take blue essence to upgrade champion mastery?
I mean, you've busted tail trying to master a champion, and you get good at them and you try to learn their ins and outs only realizing you have to wait even longer to get that m7 on the champion you've spend weeks or months trying to master a champion only to have to fork over blue essence that you might have been trying to save for a champion to get that lovely blue symbol appear over your head when you press control 6. If there is a post somewhere that answers my question, please link it, but otherwise, I do not think that we should have to use blue essence to upgrade champion mastery's. Isn't getting 2 or 3 S ranks enough work to get that mastery?