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Played on Large map, level 113, cleared the Pandora castle with 60+ golems, and got 20 air units as a reward. Upgraded them and started destroying everyone... On level 124, I had around 40 vipers in my army. Thanks to the Pandora castle, I placed birds, generating 15,000 gold... And then I cleared everything. On level 127, I captured the Castle of the Dead, which was guarded by a lot of minotaurs. At the beginning of turn 3, I attacked, and the enemy surrendered.
Thank you for the game!