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Just don't start inventing all sorts of defensive and offensive formations, dwarven luck, runes, and so on. We were originally talking about gremlins as the most promising first-level units. Mish-gun, I'm not going to start comparing dwarves and necromancers in this thread, but if you put your dwarves against a horde of necromantic skeletons at the end of the first week, only horns and legs will remain of the former.
Okay, no argument then. Let's compare at the end of the first week: Ingvar (even at level 1) and 100 warriors or mountain guards!
The skeletons have no chance, but the gremlins have a slightly better chance, especially with Hafiz!
In general, under Hafiz's leadership, gremlins are a strong weapon, but only in a rush; in the late game, they lose their relevance!