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TMNT, I strongly disagree about the Castle. It's definitely not a weak Castle. Not at all. It has a great army. I see you like the Swamp the most, which means you're one of us, I like it too.
The "thing" is that it all depends on the opponent and the map. I usually choose the Castle or the Tower.
Pawo, having bears in the first week is good, but it's not a big advantage, especially when playing on large maps, and besides, they are not as good as Archangels or Black Dragons. It's strange not to see the power of Archangels.
Koren Dobra, these are pretty good stats, but... let's say, the price of Archdevils... yes, they have 28 attack and defense (if I'm not mistaken), their speed is good, but they are quite expensive. And what about Imps? Yes, they are good, but also expensive. And Gogs are not very strong archers, and in mass fire, they also hit their own, which is why you often have to skip a turn.
Julyanna, undoubtedly, Gorgons can take down 6th and 7th level creatures and even dragons with their gaze after the main attack, but this is by no means the only advantage of the Castle.
Brovach, I completely agree - you can play well with all of them, they are all good in their own way, you just don't prefer all of them, and everyone evaluates the advantages of the Castles differently. Plus for you.
Rukh-Og-Chudishche, good job! There is always something that can stop anything powerful, or there is something even more powerful. Magic also has its limits and is vulnerable. So, being good at all magic and being an expert in all magic is good, but only under certain conditions. Plus for you too. And why did you leave the Citadel? Did you get tired of their fast, strong attack? Although, I also used to play with the Swamp, and then I switched to the Castle. But I have my own reasons for that.