User blog comment:Chad Pattan/Dear Nubee: It's Time To Clean Up The Cards./@comment-25751901-20150612122438

I also summon many. I think the only thing I would complain about summon is Nubee NEVER tell us what is the %rate of UR or SR. I don't think number of R/SR/UR matter on rate of rarity. (It matters for rate to specific card though. Big pool, less chance.) For example, no matter whatever number of R/SR/UR in summon let's say 10,000R 200SR 20UR. If they would tell us it is 5% UR rate, then  it means there is a 1/20 chance to get UR in every summon.

I wish Nubee tell us the summon rate someday. >:(