[Lord_Bob]

-Regarding spells, Solar Rays (Evo2 S2) can be very effective.

This statement indicates you are another ra-ra Dominions player. A mage killing 3 undead per turn is not great. It is pathetic. It is so pathetic that there are no words to describe it's patheticness.

-Dust to Dust (D1, Thau1)
Dust to Dust was designed to kill the Vampire Queen and other super-powerful undead. It is USELESS against legions of dead.

-Something you might want to consider is the 'priest raiding strategy'where you send about 20 priests into an Ermorian province scripted with Banishx5 then flee.
Yes, I can see this working.