A week or three ago, I bought the Guaranteed SSR Eidolon 10 roll Gacha and was rewarded with Fafnir. That was cool, as up until then, I only had Amaterasu. Sunday night, I bought the new one that was on sale and was rewarded with Ifrit. I'm now curious about which one should be my primary for my Fire team? Ifrit is ever so slightly stronger overall with the better Eidolon effect, while Fafnir has the better summon effect and is more flexible as she can boost water teams as well.

Also, in general, should the Eidolon roster for each team be loaded with same element Eidolons, one of each element, or whatever's strongest so long as your primary is same element?


(Side note: Also bought the new Guarunteed SSR Kamihime 10 roll and was rewarded with my second Code of Hammurabi, my second Guilty Dragoon, along with Acala, Thanatos, and Aten...I wasn't aware it was possible to pull 3 SSRs at once.)