Good game everyone, it was fun.
Anyway, onto analysis:
#1: Even without the Mercuries, Agartha has a very good mage lineup, and Sacred upkeep adds up to a lot of saved gold, You guys let me research up and get all the fun spells. Really, Agartha really only needs Conj 3, Alt 9 and Evo 6 to really get going. Alt 7 is acceptable if you're willing to invest the Earth Readers and gems to spam Marble Warriors. It's a nation that really only benefits from a stalemate/being left alone, and my... well, very passive play style tends to mesh well with that. Most of the conflicts I've been in were started by the other guy first (Sauromatia, Marverni, Fomoria, Niefelheim) or was part of a gang up offer from someone else (Therodos, Vanheim). If you leave me alone I'll leave you alone, unless I see a way to rapidly win.
#2: This is more directed at Thtbloves, as a what I would've done if I was suddenly thrown into the game in your situation (Sorry everyone else, but I have no experience with giant nations and I can't blood magic for the life of me...): Stellar Cascades spam. Now don't say 'but Marverni doesn't have access to many S2 mages!', you have access to very cheap S1 mages (your Stargazers) and S3 (S random Elder Druid). Have the Druid cast Light of the Northern Star (Conj 4) and suddenly all your S1s are now S2, ready to bring the nigh unstoppable hammer of astral artillery onto my mercuries. It even has the upside of not inflicting direct damage, so your mages won't trigger your boars Blood Vengeance! Also, your regeneration bless would make your boars very resistant to the poison auras once my mercuries were knocked out.
#3: Shadowlord, I will say, your flying demon cats were the only thing that actually SCARED me (at least before I got Army of Gold online and I figured out THAT spells effectiveness vs Boar spam (Thtbloves know what I'm talking about
). I'm a little upset that we never saw how exactly they stacked up...
In similar note: Chaoticag while vanilla mercuries beat N9 Niefel Giants 1v1, 5v5, 10v10, there is a threshold (I don't know where) where your giants pull ahead, due solely to that frost aura of theirs, once they freeze the front line of mercuries their insane durability works against them, allowing the frost aura to freeze or mostly freeze those behind the front line. Of course, this tactic goes out of the window when Agartha hits Alt or Ench 8 (Warriors of Muspelheim/Frost Fend). I will note that this DOES work (IE: I've killed a Army of Leaded mercury doomstack with this (they forgot the frost resist buff), sure I wasn't using Niefel Giants (MA Ermor's Lictors to be exact), but the point remains)
TL,DR: You let me build up too much and let me prepare for the end game.
(P.S. This... Took a lot longer than I thought it would to write...)