As far as Fomoria goes - one of its problem was that for all its size, it really had very few SCs comparable to Gaints. Niefelheim has outnumbered me 3:1 to 4:1 to one in teleporting SC department, based upon just teleporting SCs that he has used against me.
On top of that he had Mage Bane and Serpahs. That combo alone (of whitch I was unaware since I have not been in this game for too long) costed me a lot of my best SCs and anti-SCs in several battles. I am not even mentioning Astral Boots, Gate Stone and Solar Brilliance.
Lagging badly behind Giants in both quantity and quality of SCs, I have chosen not to waste what I still had by seeking SC vs SC duels with Niefelheim. I've spooked few of his SC in attempted ambushes (Gaints were also using ritual or returning like I did), but mostly I've used my SCs for raiding (those who had astal pick). Most of my Fomorian Kings as well as remaining SCs went into armies support. I had to use less conventional raiding tactic using "hide and seek" glamour stealthy troops protected against mindhunt, immortals in friendly domminion, Ghost raiders, et cetera. It was quite successeful raiding compaing overall. But at the end it didn't matter, since Gaints have long since switched to gem-producing items economy.
At the end I think one of the main reason for Giants victory is the fact that they had huge ammount of clams and bloodstones. While I have inherited nation which didn't have a single clam or blood stone by turn 75. Giants have masterfully translated their overwhelming gem income into all kind of benefits - tons of unique artifacts, Serpahs, Chalice, wishes, tartarians, kick-*** battle gear(I think Giants have routinely used Rings of Wizardy on their SCs where I would have used talisman of luck
), and of course Forge of Ancients, et cetera.
Anyway, good game everyone. And congratulations to Truidjy for victory, well done.