What about in a combat situation? Do costs even make sense in that context?
So the obvious thing would be injury or exhaustion (I take out the goblins but need to catch my breath) or it could be position (we’ll fight backs to the wall) or equipment attrition (I’m willing for my shield to be ruined in this fight)
But I also have run it zoomed out combats like in T&T where a single roll accounts for the whole of the fight