Thank you very much for the compliment!
Regarding the minor issues – in the third scenario, I blocked the computer's path with gates, so it can just sit and wait in its city. There's no point in it anyway. I strengthened the ambush so much that even three heroes won't be able to handle it, and as for death magic, I don't know. Personally, in the final battle, I needed to summon devils, and I learned necromancy only at the end of the fourth scenario; before that, I avoided it in every possible way. By the way, nature magic also gets a bit boring with its summoning, and you can't just give it up because of its incredibly strong buffs. It's a pity that you can't just disable the ability, like in WoG.