Board Thread:General Discussion/@comment-34938120-20180320211705/@comment-28757546-20180329200755

CakeBuu wrote: That's nice I like it.

A variation could be that if your muli summon contains zero SSR's then you can perform free single summons until you get one.

10 singles in a row could also meet the criteria of this rule.

As like a promise of rates goodwill gesture.

Being good to the customer and promising a 15% rate each time. That's 1 SSR per multi. there's also what fire emblem hero does, if you summon and don't get a high rarity card, the rate for high rarety cards increases until you get one.