Talk:Monster Musume: Everyday Life with Monster Girls Online/@comment-27351815-20160718185223/@comment-27615277-20160718201059

You have about a 1 in 10 chance of getting an SR on a 10+1 roll with rubies.

This is a good overview of how 10+1 rolls go:

1 HR = Bad roll (you are garunteed at least one HR on a 10+1 roll, anyway)

2 HRs = Mediocre roll (you usually get this, on avarage)

3 HR = Good roll (maybe 1 roll out of 5)

4 or more HR's or an SR = Great roll (maybe 1 roll out of 10)

More than 1 SR = Amazing roll (maybe 1 roll out of 100)