[Endoperez]

It could be that the enemy dominion lowered it even further the turn he died, in which case it could have been a Seeking Arrow. Seeking Arrow is an Enchantment spell that gives the following message, with variations depending on if the target evades the arrow or manages to survive the hit:

"Suddenly an arrow appeared out of the sky and struck Pazinah straight in the heart. She died instantly."

Did you get this message or something like this? If you did, you were really unlucky even in heavy enemy dominion, because Seeking Arrow only deals 8+random variation points of damage. It ignores armor, though, and causes a Chest Wound affliction.