Wulfsten's Challenge - "Laslo" [Campaign 2, Mission 5]

I just finished the Walkthrough of the mission and Campaign on Veteran difficulty, version 2.1. I played it as follows: at the start, I took Resurrection, as I was developing Chaos magic. Wulfsten came from the previous mission with the following stats: Attack – 14, Defense – 25, Magic – 19, Knowledge – 7 (level 26). Duncan had: Attack – 14, Defense – 17, Magic – 8, Knowledge – 7 (level 28). In general, with the starting army, I went to clear my territory, sending Wulfsten in one direction and Duncan in the other. With the initial army, I could defeat any neutral creatures. The goal was to increase the mana reserve (the Ring of Sar-Iss helped me a lot with this) and hire Lava Dragons to later decimate enemy armies with Armageddon. When I had cleared almost all of my territory (around week 5), Laslo, level 25, arrived with stats like 17-18-11-9 and an army of 42 Cavaliers, 400 Archers, 160 Griffins, etc. I met him with Wulfsten and 8 Lava Dragons. By that time, my Armageddon dealt 1500 damage + pyrokinesis, which was enough for 3 casts. To prevent the Lava Dragons from taking too much damage, I used the Rune of Etherealness. After that, everything went as usual – clearing the map, visiting upgrade locations, and finishing off the opponent. I wanted to develop Sorcery, but I couldn't do it in the end. Oh yes, I dug up the Tear of Ashtar after visiting 3 obelisks; Duncan had Ashtar's blessing. Here are screenshots of Duncan and Wulfsten at the end of the mission: