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We played on the "L" map, and our army performed very poorly. On the entire map, there was only one nest of birds, and the "Dungeon" helped us a lot. There was also one "Pandora's Box" artifact, but it was empty. In the end, I upgraded the "Earth" spell, the "Cannon" skill, and the attack, and with 100 mana, I went to the "Gate of Oblivion" with 80 monarchs. They fell easily. Then, I used "Shield" + 4 "All" spells for 60 mana, and after that, the "Fire Elementals" met us as expected, with "Meteor," "Chain Lightning," and "Bolt." I left 7 "Thunderbirds" and 2 "Chimeras." Then, with the remaining companions, I somehow survived in the "Treasure Room," thanks to the "Black Orb" spell. In the end, the stats were the deciding factor.
Thank you for the games!