I'm discarding what I don't want to use yet, but I also don't want to lose it.
So, I went to the Heroes V - Modders' Library thread, took artifacts from NAF, and took files for new hero classes from WGE. For NCF, I didn't need to take anything; everything I needed was already in the first two mods, and I put it all together so it would work (in theory).
Then, I took the EE mod and patched it with the new creatures, hero classes, and artifacts, along with the vanilla engine and map editor.
I don't know why I did this, but if this thing isn't broken and someone finds it useful, I'll be happy.
I ran a test – I put an artifact with the ID of the Blade of Cold from NAF, a hero with a class from WGE, and a creature from NCF – the game launched, everything worked, and I'm happy) I hope there won't be any crashes.
Now I'm running it through LaaHack; in theory, the amount of RAM used should increase.
https://disk.yandex.ru/d/agumib0gmd1Yiw