Re: Besieging undead armies
 

Siege Golem and Gate Cleaver, problem solved

Re: Besieging undead armies
 

That depends. If you are defending a fortress, it tends to work pretty well, mostly due to the whole "having a choke point" thing.

Re: Besieging undead armies
 

Really? I think that is just the chokepoint and the troops in there. The brilliance didn't do much for me in those situations.

Re: Besieging undead armies
 

It's mostly that it prolongs the battle, and gives Solar Brilliance more time to work. That said, it also gives battle mages more time to just blow everything up - which, in this case, likely means Banishment communions.

Re: Besieging undead armies
 

So the key to the assault of a fortress defended by undead hordes would be something durable to lock up the choke point, combined with strong penetration casters doing something (banishment, solar rays, direct damage area spells), right?
Cracking the fortress isn't any harder than cracking any other fortress, but the assault takes some different sorts of thought.

Re: Besieging undead armies
 

Solar brilliance prolongs the battle also, your own blind casters and fighters cannot hit the undead.

Really, getting the astral up for solar brilliance has mostly been a waste in my book. Esp as I doubt penetration boosters help the spell.

Re: Besieging undead armies
 

It may perhaps be worth it for Rose Ulm, who have a handy onbattle caster of solar brilliance, and whose troops have MR14 base with an easily accessable antimagic boost, combined with not having very good amounts of banishment.
Although for Ulm, Iron Blizzard tends to kill more undead than banhisment, and does not care about MR.

Re: Besieging undead armies
 

Don't forget the Domkill option. Park an army to defend the territory and some priests to preach. Use your other forces to mop up his other territories, and he'll go away when his dominion vanishes.

Re: Besieging undead armies
 

Battlefield-wide elemental damage spells and Rain of Stones are other favourites once you have breached the walls if the enemy has thousands of weak undead.