The fate of the kingdom.

Static effects (AdvMapStaticShared), like the ones you used for the waterfalls and the island. I didn't use them because I was afraid the effect would spread to everything. Your level showed the opposite. And I've been wanting to use them for a long time.
By the way, I know the geography of Tallan quite well, and the history of Ashan too, so I think this is a fictional kingdom, right? If it existed, then I've added to its historical record with my Multiplayer...

Yes, effects are the best tool for an advanced map creator. And the kingdom is, of course, fictional. I don't know the history and geography of Ashan well enough, and I don't want to make mistakes.

Added 7 minutes later
The hardest part was creating the flowing water effect. I found it by chance when I was looking at the Dwarf Castle and noticed that the river was flowing. And after two hours of struggling, I put together a Frankenstein: an object with the texture of the flowing river from the Dwarf Castle and the geometry of the Dwarf underground bridge (X-segment). And in the end, the effect is only visible in shallow water.