So I blew 39000 jewels trying to get Chernobog during her rate up but ended up with no SSR hime. I've been starting to stockpile jewels again for the next dark character to complement my current Satan and Hades.

Any advice as to which character to throw my draws at and which Soul I should be using as my main?
I've been considering waiting for Samael's release but idk if I should gamble on new year for the chance at dark Amaterasu. Soul-wise I've got Arthur, Mordred and D'art and am working toward Hercules (might farm soul p during this advent if I can be bothered).

Also, what's worth using elixirs on? My team is just a bit too weak to clear ragnarok pazuzu and I was wondering whether or not is was worth. For that matter, what's worth buying in the Eidolon orb store?