We ran into this question last night: We had Shroud of Silent Mist is in play, who had damaged towns in its lands. Then the blight card flipped and turned out to be All Things Weaken. Among other things, the card says "Starting next turn, invaders have -1 health".
In this case, what happens to towns which are already damaged and don't heal until next turn? Do they keep 1 health point, or would they be destroyed immediately as soon as the next turn starts? And what would happen to a city that has taken 1 damage before the blight card flipped?
Many thanks,
Frank