This is essentially a Thunder or Light team given your eidolon choices. You should probably populate it with some Thunder or Light kamihime, else your damage and survivability are going to be extremely low. Light choices without Gatcha or event SRs are pretty meager, so you might want to go with Thunder.
You could also file this as 'null' element, with the objective of countering whatever element your foe is. Of course, that inhibits your ability to specialize and devote to leveling a single assault skill, which could impact your ability to do Ragnarok Advent battles in the long-term.