Having Azathoth as a rare spawn is a pain in the ass. I can with about 70% consistency clear cosmic trinity with my alt. Cthulu is an instant quit now that I have one, Nyarlathotep dies in one hit, but damn it Azathoth refuses to spawn.
My alt is a pure cheesy utility team.
Grodin Tamazo (Hathor)
Viz Asgard
Awoken Isis (Force)
DKali (Sheen)
Zeus Dios
Friend Odin Dragon (Revo Hades)
Main is
Anubis (Dark Uruka)
Diaochan (Revo Venus <--Stat stick)
Diaochan (Light Cecil <--Stat stick)
Revo Indra (Indra)
DK Cecil (Dathena)
Anubis (Sheena)
Strategy is pretty simple, floor 1/2 stall up all inherits as best as you can, kill if you need to. Hathor and Hades are for the 75% resolves If you have a better inheritable gravity, use it to clear things with 50% resolve (cough Cthulu). Most floors you can just annihilate with anubis. Put up Viz Asgard's shield going into floor 6 to save you from Goemon. Dathena and Force are for any dangerous delayable floors. Uruka is for Hanuman since it won't be up in time for Sopdet. On that note if you pull Hanuman and have sheen and uruka available I recommend you use it cause stalling 99 turns in (2p)3p is BALLS. I got a bad Uruka board and didn't want to pop Sheena to fix it, 99 turns later....
Vs the trinity
Cthulhu: Shield, chip into range where gravity can clear resolve then Grav-->Grav-->Sheen-->pass-->sheena-->kill
Nyarlathotep: Grav-->Grav-->Sheen-->pass-->sheena-->kill no stalling necessary
Azathoth: You can chip it down but it's risky, I'd recommend stalling him out (yes all 999 turns...) at over 70% HP he can't kill either team, diaochan keeps the board unlocked and you can keep matching to reveal heals. If you don't mind stoning though go nuts.
So far I have the 2 Cthulu and Nyars I want, still looking for Azathoth.