Alan
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Maybe I don't remember anymore. By the way, it's a very useful building, but for the Swamp faction.
This building is absolutely overpowered for all factions... just like killing griffins for angels. For any faction, getting a couple of dozen level 6 monsters at the beginning is a big advantage, and since they are neutral, morale won't drop.
Тьма - это то, что позволяет смертным не забывать, как ярок бывает свет.