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The castle conveys the fairytale-forest atmosphere well, but when it comes to tactics... I don't like that it's entirely focused on one unit: high elves. They are protected by dendroids, gnomes, and unicorns, supported by pegasi and dragons that block archers, and enhanced by hero magic... All of this is good, and the unit itself is incredibly powerful for its level – but if it's killed, what will the Rampart fight with? They don't have any other serious offensive stacks; unicorns are weak for level six, pegasi are nothing special, except for suppressing magic, dragons are decent but can't compare to underground units, and a few centaurs won't do much. Also, the mage guild is limited to the 4th tier (although there is a treasure room, but it will take a while to pay off...). On the other hand, warrior heroes in the Rampart are strong, especially those specializing in blocking magic and logistics (they are really great^^). Although this is again "compensated" by weak mages – even a specialist in ice arrows is not very useful.