Just finished playing through this mission. I played as a hero. Overall, leveling up Wolfstone's super ability is the best decision. In this map, I obtained it, although it was after defeating Laslo, but I managed to defeat him without it. As I mentioned, leveling up the super ability is the right thing to do because the path to it leads through great skills, and they are all very useful in battle, especially chaos magic, which makes the battles even slightly unfair. I defeated Laslo with 3 Armageddons, losing 6 lava dragons (I had 9). He came to me, as planned in the scenario, on the 4th week of the 1st month. Then I simply cleared the map, and Wolfstone and Duncan visited all the upgrade locations.