Lapistia

I have an idea to create a dwarf engineer who can both fire a cannon and hack an enemy. In this regard, I would like to clarify a few things:
Does firearms penetrate armor?
What is Asvaldr's arsenal? How does it differ from other weapons?
Does national skill consume mana?
Is a golem used only in combat or for anything else?
How do I get a golem? As far as I understand, if it was in the lottery, then you can't assign it to yourself at the start, right?