The upgrade process was only fully completed in my last turn. I got Grand Master for the Demonologist and Grand Master for Order near the lower utopia. I didn't have time to learn the Grand Master skill for charm stealing and didn't have time to join forces with the four castle devils and several vampires. In the final battle, it turned out that none of this would have helped anyway. On my side, only the Devils and the Tactician managed to take their turns. The Mages attacked in a fan formation, damaging my Mage, then one French Diser burned away the remaining health of the sorcerer, and the second Diser destroyed the Tactician with 420 health and over 50% resistance. My Demonologist fell from a double strike of 4+4 from the Chaos Dragon. It all ended in the first round.
When I saw Matthew rushing towards me, even before clearing the utopia, I realized that I was short by just one day to complete the preparations for the battle. In the last turn, I started to worry a lot and made some silly mistakes. I entered the final battle with that mindset.
I watched the recording of the battle in the morning. It was difficult to come up with something more sensible. By not moving the devils, I was taking 2 Diser attacks and Hand of Doom, which could take them all out in one round. The only thing I needed to do was position the vampires to defend the Tactician from direct damage magic and place the devils on the flank. But this is about the preparation for the battle, which didn't go well.
Matthew and I both had a very weak setup in terms of artifacts and paths. He, of course, got the Sandals of Swiftness and Wings and the +40% axe, and I, of course, got the +30% staff and the Mullah's Helmet. However, that was all that was useful from such a large number of major artifacts. Matthew only used Dragons and came to me at 143 - you can imagine how inconvenient his paths were.
The hero upgrades turned out well on both sides. I have 2 Grand Masters, and one of them is a Demonologist. He has 3 Grand Masters. But overall, I think that Chaos won in this mutually weak situation. He won convincingly. There were few maneuvers. I believe in Havr. I don't have the spirit for it myself. I hope for 3rd place :)