Quote Originally Posted by Shieun View Post
I am farming on ultimate currently (on manual though, dont think I can auto them), and I do have some left overs half elixers from last two events.

Judging from your response, the obvious answer to my question is that the shop doesn't refresh and the material requirements for the items just increase as you exchange them?

Also I have some questions about your spreadsheets, but I suppose it's for another day. I can tell you did a lot of good work there, but at my stage of learning, it's kinda hard for me to understand.
Take a look at the Ixion tab of my spreadsheet. That shows trade-in requirements that should match this event.

If your primary element won't be Fire, max the eidolon. If your primary element will be Fire, max the eidolon. Yatagarasu is one of the best secondary eidolons due to her active skill, so she'll likely have a permanent spot in all of your teams.