I got lucky at the beginning, finding an amulet for Necromancy in the first dungeon on day 1. After that, I didn't take any risks; scouting revealed 2 new Lich nests. As a result, by the second week, I had 21 Liches. I left 6 for farming skeletons at the Inferno respawn point and used 15 to continue. I took another Lich nest in the dungeon and a cloak with +2 speed, deciding how to take Utopia. Then, I ran Sandro (he had Earth Expert) to scout and harass, and he stumbled upon Nagash with 2 angels and Kalk with the rest of his army. It took a bit of magic to kill an angel, Nagash surrendered, but killed 16 out of 18 Liches with lightning. Then, he attacked Kalk, where there was a lot of meat, but the skeletons, with speed, killed the attack stacks, and the vampires blocked the Gogs.
Thanks for the game!
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