Board Thread:Questions and Answers/@comment-26564400-20150703190610/@comment-26297531-20150706145014

i think i saw it somewhere on reddit. also, my personal experience... it does seem somewhat more successful to do with higher stage fodders. in any case, farming higher levels tend to give you more experience too, so that you will level up your summoner faster as well, to unlock more cost for all that 7 stars :)