We know that Sons of Svanir and Jormag minions kill people. But just listen what Jormag itself does.
Today I spotted a Vigil soldier in the keep, with Jormag’s aura around her head, talking incoherently about surviving and some other stuff over and over, no way to snap her out of it. I was curious and kinda worried as she left the keep, so I followed her as she slowly walked away further and further.
At one point I thought she is going straight to a Svanir camp, but then suddenly she left the road and sat between two trees.
The dialogue changed. I tried to talk some sense into her but nothing really helped. I didn’t want to leave her behind, so I decided to sit with her for a while, hoping she’ll come to her senses.
She did nothing. She was just sitting there.
Then after a while I realized her health bar is dropping. She died on the spot, and there was nothing I could do against it. That fucking dragon just made her walk away and froze to death.