That's ridiculous. Not only are there many different types of wolves here, of various sizes and specializations (as has already been said), but also... what's the point of such a Faction? It doesn't fit into the Heroes canon at all! The argument that "if there are vampires, then their eternal enemies, werewolves, must also exist" doesn't hold water, because this isn't Twilight :D
Besides, each Faction already has its own concept, and it doesn't make sense to change everything fundamentally.
What does Twilight have to do with it? I don't like that... I don't even know how to call it. If you need a plot, I can provide one, explaining why werewolves exist. The case with spiders is the same; there aren't enough of these types in the Fantasy setting, and I've seen a mod that replaces the Free Peoples with the Lizardmen from Heroes 3. There are also many Lizardmen there, but the mod still gained popularity, 70% out of 100%, because people are somehow attracted to playing as new races.
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In my opinion, there are too many wolves:D It turns out that the entire city consists of different types of wolves; I don't think people will accept such a Castle (even a large number of dwarves in the northern clans caused outrage among the people). It would be much better if werewolves were added to the Magicians as a fifth-level unit, as offensive infantry. Then, the spellcasters can be moved to the third level, but still give them a small bonus and make them very strong (in my opinion, it's logical; in the city of magicians, magicians should be more accessible than among dwarves and other non-magical races).
Regarding the Undead... Void Spirits are weaker than dragons and other seventh-level monsters, so I'm in favor of Dragon Knights :smile54:
The heroes of the Undead can be anyone; you can create a couple of Fallen Angels, several Necromancers, and Void Spirits.
I don't quite understand; are you suggesting putting Werewolves, Chimeras, and Wolves into the Magicians' Faction?