[apoger]

>1. Does pure movement (advancing, running) cause fatigue?

No.


>2. Stats on items that reduce fatigue (like girdle of might, etc.) dont make it clear to me by how much. Is there a way to figure that out? Does it count for all activities (e.g. trampling, casting, melee, etc.)?


The number associated with the item provides reinvigoration (anti-fatigue) as per the number once each round.


>3. Speaking of stats, what exactly do these numbers mean when it reads e.g. "30-". They dont seem to cost exactly 30. When my Great Mother casts one of those in her dominion with -3 drain, it should cost her way more -- but her fatigue only seems to go up by less than 30. Is this "-" in the "30-" mean something?


That's probably becuase she is casting a spell that requires less skill than she has. Extra skill over what's needed will lower the fatigue from the spell. Effectively, if a mage is skilled, they may cast more often.


>4. What exactly is the deal with fatigue and mounted units?

As far as I know, it works the same for them, except they don't get penalties from armor encumberance.