I've actually found these last few turns of you trying to kill my monolith rather amusing
. According to my battle report, the Monolith had 65 hp left after the battle, so close enough I guess.
I wouldn't mind playing out a few more turns but I'm willing to call the game should everyone else be willing. Believe it or not I've actually started to recover from the whole Utterdark situation somewhat. I've started summoning more upkeep free commanders to replace all those rather singular use monkey mages that are disappearing (horrible battle magic, only good for reanimation). The Agarthan attack on my capital took out a lot of my good commanders but they were bound to abandon soon anyway due to upkeep so not a total loss. As long as there are labs lying around in my territory my recruitment wont really be that inhibited either and I've learned a rather valuable lesson that most undead are really only useful as a chaff shield (so I should stop using them without some decent ranged support).
Overall, I think I've really just been the least affected by this whole darkness scenario. If it wasn't for my complete failure at utilizing magic to sway battles in my favor earlier, I'd probably be reaping more benefits from this global than Agartha even.
Edit: Oh and I pretty sure that if we summoned the prophet, it would still maintain its priestly magic but I don't know for sure.
What I've always wondered is what happens if a mage casts a global and then is enslaved/charmed by another nation?