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I completed the hero mission; it was only difficult at the beginning when I captured Gryphonhill. Then, Rutger Hauer and Elijah (Ellaina) Wood immediately attacked me, :D I quickly defeated the hobbit, but I had to struggle with Rutger. The fact is that both knights had well-developed attack and defense, while my Zehir only had good strength and knowledge. Of course, thanks to elementals and resurrections, I defended my Castle from Rutger and even managed to leave 21 knights on horseback alive. After that battle, the enemies no longer offered serious resistance. There was only one unpleasant moment when I sailed with Godric on a ship and landed on an island to capture a gold mine. There, hidden behind an unexplored area of the map, was an enemy hero with a decent army. This jerk boarded my ship and sailed towards my nearest town, and I couldn't teleport Godric because he wasn't yet level 20 and couldn't learn the portal to the town. In short, I had to reload from a save, landed on the island, and first of all, I took out this jerk, and even gained some experience.
The final battle with Markel was as easy as pie, and once again, the AI on the hero acted strangely. Markel was developed exactly like Faidaen, even better; he had magic 33, defense and attack around 25, and knowledge 22. I'm not even mentioning that he's an expert in dark magic, sorcery, and his spellbook is maxed out, but in all three battles, he didn't cast a single control or even a mass weakening spell. In the first battle, he cast Dodge twice, in the second, he didn't have time to cast anything, and during the siege of the Castle, he only attacked the archangels with a manual attack. In short, I'm disappointed. I thought it would be a tough battle, with endless reloads and changes in tactics to win, but I tore him apart effortlessly, as if he weren't the fearsome Markel, but a weakling of the first level.
PS Something is wrong with this "hero"; maybe I'll try completing the 4th mission on veteran difficulty, because I feel that even Isabel as a hero will be an easy opponent