thats a nice team you have
I guess your main team is Shiva + Poseidon + Satan + Nike?
If so your best choice is Andromeda imo. Then aim for Granuaile / Dart debuff for ex skill (sniper shot)
You'll be able to replace Satan with Gabriel in ~2weeks (SR water hime, Same def debuff, brings some buff)
Andromeda + Sniper shot will also be your best choice if you build a little dark team with Satan + Tsuku + Mephisto + Amon.
You'll maybe be happy to know that the 3rd kamihime you can get from raid event will be dark element (=> Valor )
If you want a more offensive team, you can replace Andromeda with Siegfried.