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No conservation, no ambushes, but I managed to get archers from the Pandora box. I decided to make the Valkyrie my main unit. As a result, with 122, 2 archers, and 100 archers without earth, I defeated a Necropolis stronghold (dealing 1 stack of damage with each attack). But the time pressure was intense. And I stood as a Valkyrie in the center for 2 turns in a row. Then, it was game over. Thanks for the game.