New threat.

Thank you, author, the map is captivating. There are no problems with the Walkthrough on the surface. It's a bit more challenging in the Dungeon, but Railag can help by defeating the dragons and capturing the Dwarf Castle on the surface. He can then research the portal to the city and enter the Castle in the Dungeon. Maybe it should somehow prevent him from entering the Dungeon, otherwise it becomes uninteresting?

In theory, he shouldn't be able to enter the Dungeon. I didn't think about the portal to the city. I should have also banned this spell on the map, but I forgot... Of course, try to complete the map without Railag in the Dungeon; he's not needed there. The main hero is perfectly capable of completing the mission on his own. That's much more interesting. And let Railag roam the surface, harassing the Elves.

Added 6 minutes later
Now I remember why I left that spell... I thought I had banned the construction of the 5th guild in the Dwarf city, but it turns out I didn't... Thanks for pointing that out. You still found a loophole in the Dungeon.
The flaw has been fixed. I advise those who are playing the map not to use the method described above.

By the way, it would be good if those who completed the map could express whether a continuation is needed.