The main factor in the victory was hiding creatures, +3 creatures in the castle, +1 hidden creature, +1 summoning portal in the dungeon, totaling 5 per week. On the 4th week, I took Utopia (it helped a lot in the battle with a stack of 13 bears:) ) and on the same turn, I built artifact merchants - they gave me the missing pieces for the Cursed Rib armor. I equipped everything I got in Utopia, put on the armor, and started defeating everyone.
Thank you for the game.