Which faction poses the greatest challenge for the Dwarves?

I meant the battle to the last with Naadir – then the summoned creatures also get this ability, and it becomes almost impossible to drive them away from the corpses. As for the general dispel, so what? All they'll be doing is casting that spell, while we cover them with plague and unholy words. By the way, don't forget about the emerald boots. And the army will be larger – with diplomacy and inhabited mines, and even more so if they have dragon gear – no one will be lacking. Regarding the Town Experience (TE). There is a very effective way to increase TE, namely – mentorship. An amazing skill. What else is needed for complete necromantic happiness? The only serious opponent for this army is probably a Warlock with Armageddon. I don't see anyone else, especially not Dwarves.