NCF – Extended list of Neutral creatures.

 If you're interested, I could explain how I did all of this and added it.

Yes, that would be very interesting.
Ideally, with a step-by-step approach like this: "For complete beginners, with every mouse movement, showing where and what to change/write/insert/add xD."
At least with screenshots. Sorry for the burden, but I'm a visual learner and I understand things best through videos (or at least screenshots).

In reality, there is very little information on adding artifacts (even without scripts, just with basic stats like Attack/Defense/Spell Power/Knowledge/Battle Discipline/Luck), so that they work in multiplayer. There are mods that do this, but they don't explain how.
And your knowledge would be extremely valuable for the modding community.