I don't quite understand where it says that resurrected units cannot be retargeted.
At the beginning of the night, Toregis is already dead, at the moment of retargeting, he is still dead, and at the beginning of the next night, he will be dead again.
By the way, I wonder where our dragon was.
Added 2 minutes later
Informational post.
You cannot raise or resurrect the same player more than once.