[Mivereous]

Perhaps when towns get targeted by Black Beasts, after another update or two, the town being targeted would have a kind of warning system for such (like guards, or outposts that see them coming, if that would work). These would tell players two or three minutes in advance to a Black Beast invasion, so that those that did not wish to participate (young/really old/incompetent characters) would have a chance to head indoors, or to another town.

Example

Update X.X2
-Karatyn gets rekt by Black Xs all day errday

Update X.X3
-After realizing these attacks are going to continue for a while, Karatyn has upped their security with alarm warning outposts inside and outside the city.