So, I see they all have both these powers (Rejuvenation, Cursed Domain).
1) How does Rejuvenation work? Is it like a lich, a psychic lich, a ghost, something I can't remember, or something else entirely? I don't see anything in the Bestiary clarifying what it works like for Blights.
2) How large is their Cursed Domain? Should I use Dread Lords from Horror Adventures as a base, but limit it to the edge of the terrain? Because that could (especially for Cave Blights) get exceedingly large.
Oh, and 1.5: How can their Rejuvenation be ended?