Which faction poses the greatest challenge for the Dwarves?

No, I agree, if you get some really good spells and artifacts, then it's worth it. I just played a dragon passage map against Ingvar – that's the situation. Luckily, the phoenix helped, as did the vampires, but the dwarves are developing quite well. I'm talking about Armageddon, it's powerful. What bothers me most about the dwarves is the energy rune. Regarding runes that remove effects – how do you remove control and berserk? By the way, I don't think berserk can be removed with a dispel charm. Naadiru's leadership skill keeps appearing – I don't know, maybe it's even a bug. Zoltan seems to be luckier in that regard. But honestly, the undead's troops are weak, and in situations where it's one castle against one, the chances aren't very good.