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In Heroes 4, there are bugs, shortcomings, and the balance suffers as a result. Some units could be made simpler; for example, take the harpy, which requires a Stronghold, or the ballista, pikeman, which require a building that is ready from the beginning of the game. Some heroes have incorrect skills; take hypnosis or berserk for Haven, if there is no resistance to Haven, it will stun 100%, and there are many other things as well.
