For 5 consecutive turns, I took all the second-tier creatures: 1+1+3+4+2, and moved towards the opponent. Tant remained on the starting tile. On the third turn, I saw the opponent rushing with 4 angels. I managed to reach him, and he offered a truce. He didn't have enough strength to attack. Then, the opponent pushed me back, and his army was on the outskirts. On the next turn, I pushed the opponent back. On the following turn, he attacked me with 350 skeletons and cast Armageddon. Fortunately, before that, I had taken a box containing the Basic Wisdom spell for the entire map (I did curse a bit). I cast Antimagic on the remaining angels, and the opponent offered a truce. I reinforced my army, took a consul on turn 3, and moved towards the opponent again. There, 20 minotaurs with Mass Haste dealt significant damage to the angels, but they held on. The opponent retreated with 6 vampires and 10 medusas. I thought it was over, although he had a Nagash with stats 4-1-17-(150), but Antimagic saved the day.
Antimagic was the key.
Thanks for the game.