If there is interest - we could start a leisurely discussion via email, for example, regarding the map's internal mechanics.
Believe me - it's much more curious on the inside than on the outside.
a hidden water event with fairies and azure creatures for useless artifacts
the path to the Dragon Utopia - it's also useless, after all. There is very little money for such a stage of the game, and artifacts are obtained elsewhere
sets of snails - their troops aren't needed anywhere
various imps-nagas-medusas on Barbarian land. They provide very little by then.
It's not certain they are redundant, but those "don't eat me" resources and "don't touch me" bottles are in the risk zone. The bottles were even supposed to give hints for the solution, but why not touch them? No need to answer here; maybe I'll see the point after a walkthrough on fanatic)