Surely at this point it was obvious that I was throne rushing. I expected to start seeing armies from Abysia, Uruk, and Ashdod on my border, but no response ever came. I empowered and Icthyid mage in water to cast wolven winter on the province on my side of the river to make sure I could cross.
As my army moved towards the frozen wastes of Ermor I remembered a post in the thread mentioning Murdering Winter. Then it hit me. There was no response, because there didn't need to be one. My mostly human army full of old human mages was sitting in a cold 3 province.
Across there river were roughly 500 abysians ready to mop up what would be left of my tattered forces. In one masterful stroke my army would be crushed and my throne rush foiled. Abysia had claimed a throne province which contained a site that gave him mages that could potentially be W3 and evocation researched high enough to cast Murdering Winter.
I desperately scripted as many fire mages as I could to cast fire fend hoping at least some of them would survive. The trolls and draconians would survive the winter and the angels were coming in from a different province so they would be unaffected, but there was no guarantee how much else would make it across the river.
In desperation I scripted my Harbingers to cast wrathful skies and thunder fend hoping that along with army regen it would be enough even in the absence of human soldiers.
I had fallen into a deadly trap.