Mastery 6 and 7
They're really dumb. I agree with the idea of doign well, but the hextech component is jsut awful. I have like 5 blue essence away from getting my mastery, but I have to trust in riot's stupid RNG system to get me what I need. Instead, I get skins. We should be able to do something, IDK, maybe BUY BLUE ESSENCE FOR IP, or maybe choose whether a chest is a champ or a skin...
Just stop this system. It's awful.