Yes, that's good. For now, I'm planning to add only some of the creatures, as it turned out that many models are missing parts. Maybe I just couldn't find them, but I had to temporarily remove the 3rd upgrade for harpies...
If there's a third one, then you need to use a loot from the complete set for it... like 300-302, and give the rakshasa a single ID... Vulcan wisdom says: logic must be observed everywhere and always! ;)

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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1