Board Thread:Questions and Answers/@comment-36033899-20180630105107/@comment-35042694-20180705004515

I think how it works is that now on all banners using Stones (so NOT the third anniversary ticket banner, for example) your 10th card on a multi will always be an SSR. This only works on multi-summons, not single summons, and the GSSR has only a 10% chance of being a featured SSR unless otherwise stated. You can actually check the rates now to see what your odds are of getting a certain SSR if you're unsure.