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But what I was talking about wasn't that. :)
I was talking about how to accumulate a large number of "goat" units from auxiliary units that are not suitable for other purposes. I attack neutrals, letting them tear them apart, and then raise the "goats" (also a form of necromancy), but with 100% success.
The most important conclusion I've drawn for myself:
Simply sending units to their deaths just to raise them as demons is not the best approach. This way, you can assemble your army into a powerful force, but overall, you won't add any HP or damage.
In my opinion, it's much more interesting that you can start breaking through strong stacks of neutrals very early on, and the inevitable losses can be raised as demons. For example, when attacking a horde of Mages in the second or third week, it's difficult to avoid losses that can reach 30% of your army. In this case, I sacrifice dogs or Ogres.
As a result, the neutrals are defeated, which could not have been defeated under other circumstances, and some very valuable artifact or Pandora's Box is obtained. At the same time, all losses are recovered in the form of demons.
In my opinion, this is a strong argument in favor of Inferno.