Hmm... yes, it's an interesting idea. As I understand it, the undead race from Warcraft 3 was used as a basis? :)
In principle, it can be implemented, but there are a couple of problems:
1) Who will do it? Right now, hardly anyone has much time, and everyone is busy with their own projects ;)
2) Gargoyles look terrible in Heroes 5, and it's unclear what other creatures they could be based on.
3) I have no idea what could be used for level 6. Although, perhaps Rakshasa could work, but I'm not sure.
P.S. Spiders exist in the game (in both Heroes 7 and Heroes 5, although they were added using mods). However, they are not very well done.
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Regarding the previous messages:
1) On the one hand, Sanctuary is ready, but on the other hand, it still needs a lot of work.
We won't add it to the mod yet, as there's no point in adding an unfinished city.
2) There isn't time to work on the mod right now, as some people have exams coming up, and others have a session.
I understand that no one will take on the task; I was simply told to share any ideas I have here. Yes, the idea was based on the Warcraft Necromancers.
Regarding the Gargoyles, I suggested using the models of Imps or Succubi as a basis.
For level 6 of the city, the models could be Zombies, but single-celled ones. These creatures were considered large creatures. I wanted to say that if possible, the zombies could be made larger than their original counterparts.
And if it's not too much trouble, could you tell me what you think of my spiders for Heroes 5?