<Ivor>
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But on HL templates, this is a very significant bonus for development. You can capture up to five castles in the first week thanks to them. (They usually come in pairs, for example, red + blue). I'm talking about Might & Magic VI now; in Might & Magic VI: The Mandate or Might & Magic VIII, it will result in a constant restart due to encountering enemies or, at worst, a 121 encounter.
What five cities are you referring to? In War of the Throne, the advantage comes from a four-way connection, linking four zones, which is created by adding the Voga white teleport (this, by the way, is not difficult to fix if it hasn't been fixed yet). When replacing one-way teleports, the teleport system only connects two zones, which doesn't create a significant imbalance.