Just in the interests of not losing a potentially important detail, What is the exact wording of the the prophecy for Durkon? It seems as though the specific line is that his return will bring "death and destruction," not just generic badness or just destruction. Notably, Malak's initial description of Nergal is that he is the "lion headed god of death and destruction." Is it possible that the prophecy is even more specific than we might think?