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This is my favorite castle (already:)). Since it's the cheapest of all, and you can start building Hydras around turn 5!!! You can generally ignore magic (that's what I do) because it's really weak in the Swamp!:( But after about a month, you'll usually be one of the strongest, with a lot of Hydras, Lizards, and a ton of money! The main thing is to build a Capitol early on to get the money flowing!!! And then, just adapt to the circumstances!!