Mastery Points Beyond Lvl 7

what would even be the point in that?

UnboundHades is right though. To get M5 you need to score X amount of mastery points on a champ. To Upgrade to M6 you need to get 2 S- 's or higher. For M7 you need 3 S's or higher. So what for M8 you need 4 S+ 's or higher?

I hardly see the point. By getting to M7 you can already showcase that you know the champion well enough and have a flair for it.

lol i didnt say that mastery 8 would get the same way........... pffffffff

How else would you get to a higher mastery? What other way is there to grade how well you know your champ?