... are you going to? The droprate on those things is awful, the exchange rate on those things are awful, and their other use (Magmas) also have an awful droprate. Doesn't seem like a good deal to me. Particularly since if you can't clear GOs, you're not going to do much against Rags. Just giving debuffs is good enough, I guess.
Apparently next tower is Wind, lucky for me since my strongest weapon grid ATM happens to be Fire. I'm a rank or two away from having enough soul P to unlock Solomon, and I'll have enough regalia after monthly shop reset for her weapon. Do I only stay at LB0 for Solomon's soul weapon? The burst effect doesn't seem all that great. Instead it feels like Solomon only needs 6 MP in ability damage and her Hour of the Overlord MEX, her soul weapon seems to be only important for giving her an aoe.
vat, vat and vat
You do Experts on ONE day.
You do Ults on ANOTHER day.
You do Grails on days BEFORE days.
Trying to do two on the same day is insanity. Trying to do all three is just "vat"? It's possible for the high end Unions especially since Experts don't really matter, but even they won't do that. So rather than blaming lack of Thor, blame your methods.
Guess you don't know what life is like down here, huh?