Also looking for some extra opinions in case I missed something:

Current Teams:
Fire: Svarog (A), Uriel, Ares (A), Amaterasu (also Acala)
Water: Saraswati, Nike U, Poseidon, Atalanta (also Ea, but bleh)
Wind: Hastur, Gaia (A), Set, Cybele U (also Titania... and Odin, but lol Odin)
Thunder: Tyr (A), Brahma, Raiko, Thor (A) (also Kirin)
Dark: Amon U, Susanoo, Hades (A), D Amaterasu (also Osiris)
Light: Metatron, Tsukuyomi, Eros, Sol (A) (also Raphael)

Grid is fairly solid for all elements (strongest is thunder, since I've been focusing on it after pulling Kirin). Only Wind and Dark can use Arthur with PF though. I don't have a main team, and just using teams for their elemental advantage.

Currently looking at picking up:

Mars - another much needed debuff for an otherwise solid fire team (Wind Rag is by far the hardest for me mainly due to debuff resist, but Mars wouldn't really help there).
Cthulu - to replace Atalanta, the lone sr I'm still using, but does surprisingly well in her role (current team is strong enough to solo Fire Rag). The idea is to eventually pick up water Raphael later for the full trinity. That's a really long time away though...

Also should mention, I'm thinking of picking up Ball U on next mtix, skipping Mammon and just relying on Kirin to push through until then for thunder.

Is there anyone else I should consider?