Looking for Mastery 7

shortly put theres not, probably because the way to get an S varies, meaning your cs can be a little low for an s but if you got a lot more kills then a normal s on a champ would be it balances out. Best advice i can give is to look at the top players for what ever champ you want an s in and see there K/D/A and screep score to get an idea of what your gonna need for an S. everyone knows that you need a good amount of kills and assists and you cant die that much, no more then 3 or 4. But everyone forgets that creep score counts too. best of luck to ya!