Ermor is upon me!

[PrinzMegaherz]

Hail fellow pretenders,

my current game against my roommate seems lost, and I would like you to give me some advice on how to get out of this alive

He is Soul Gate Ermor, I am vanilla Abysia.
We had one decisive battle where I lost 400 devils, 10 Anathema Dragons and some other stuff. During that battle I learned that Darkness also affects demons, and they were burried beneath a mass of undead.

Now the enemy is standing 2 provinces next to Abysia, and while I have some 100 demons left, I doubt it will be enough.

Any spells you would recommend me to make him rue the day?

I have got all schools up to seven, except blood which is at 9. My god has Earth 4 Water 4 Blood 9 (including boosts), I also have access to fire, Astral and limited nature magic.

Thanks!