[Coda]

Fagan drops from a technical dungeon, so he's (relatively) easy to get. Xuanzang a descend but not too hard.

Thoth is a bit of an annoying descend. Masterion is from the Fist of the North Star collab, so odds of landing him are slim.

You have Vritra that would work VERY well in its God/Dragon uvo. Durga would be a great choice with her active. Non-Awoken Pandora fits well. At this point you've got the makings of a dark row-enhance team; you'd just need to find a good fifth member. Unfortunately, there aren't any row-enhance dark gods that are easily farmable...

Okuninushi is a maybe; he doesn't synergize so well. Chibi Lu Bu is in the same boat. Xuanzang would be worth pursuing. Your Tsukuyomi Tamadra is actually a reasonable choice.