Mastery 8

I have realized that there has been many players with mastery 6 & 7 since the system came, It has really shown that the players have spent time on their champion and learned how to play them with excellent skill, but I don't think that's fully true for all. The requirements for them are fair but over time players just need a couple good games to get mastery 6 or 7 even though they might only be decent with the champion. I think making the requirements harder might be the way to go but adding a higher lvl mastery might be better, So i propose that there should be a mastery 8. These are my ideas on the subject:

Mastery 8

Appearance: the crystal would be a shape of a circle and have the color of white.

Requirements:

1. The Champion has to have already a mastery lvl of 7.
2. Receive 4 or 5 S+ to obtain tokens.
3. Unlock with 4 tokens and 800 blue essence, champion permanent or champion shard

This is pretty much similar to the previous requirements but a bit harder to get. I think it would be cool to have something like this and giving players who have already gotten mastery 7 to strive for better performance and have another goal to achieve in each game. Also i think players should may be receive some type of reward such as a special icon, border, ward skin or skin shard/permanent of the champion.