Champion Mastery System Upgrade

I'm sure most of you already have a bunch of champions at Tier 5 Mastery. The Mastery system is supposed to let others know which champions you are good at and it's working fine - the more games you play (/win) the better you should be at that champion.

But there's something I don't really like in this system - the ability to spam a champion and still get lots of mastery in them regardless of your skill. Yeah, you're getting better by playing a champion a lot but in my opinion, you shouldn't get Tier 5 by simply grinding mastery.

Here is my suggestion on which could eventually be the better way the system should work. If you have some other ideas, feel free to bring them in the comments below the post.

Leveling your champion's mastery to 3 should be as easy as it is to reach 5 right now (gain 800-1500+ per win and ~100 per lose). After that, you will need to get at least B- grade for every game you win with that champion to actually earn mastery. If you win with lower than B- grade at champion tier 3, it should give you as much mastery as it gives you now upon losing (or a bit more / any at all). If you lose a game with grade lower than B- you should lose about 700 (if not more) mastery. Everyone has bad games but you should perform well enough for your champion tier in the majority of your games to level up your champion's mastery. If you lose a game with higher than B- grade, it should take you a minor amount of mastery (like 100-200 for example).

I hope I explained it well enough for you to understand the idea. It should be the same for tiers 4 and 5 but of course, you will need at least A- for tier 4 and S- for tier 5. In this way, only people who have some decent skill in the champion / perform well most of the times can have 4/5 mastery tier. It looks like the LP system for ranked but showing how well you play certain champions.

Thanks for reading. Have a nice day!