As far as I understand, as a person who hasn't played in tournaments yet, the Necromancy Amplifier is forbidden for construction, and therefore, vampire upgrades are also forbidden. As an alternative, I would weaken the vampires and reduce the bonus to black magic. And allow the construction of the Amplifier and the upgraded dwelling.
Point 2. The same applies to Conflux.
http://heroeswt.net/download.php
This is a tournament version of Heroes. An attempt to make it not ideal, but at least balanced. So that you can play with almost no rules (without having to memorize a long list of them). Everyone has their own opinion on how well it turned out. Some like it, some don't.
Maybe it would make sense to add a 300% difficulty level for those who don't have the opportunity to play online but want truly challenging tasks?
For example, at this difficulty level, the rules would block the construction of upgraded creatures or level 7 creatures in the main castle.
Or, for example, mines would yield resources twice as slowly for the player.
I understand that it sounds like nonsense, but these are just some vague thoughts.
За то что нейтралы не бегают за единичкой, для меня это уже стоит того