Nalzok, &, is the Priest quest nemesis. He is almost identical to the Archeologist quest nemesis. The only differences are his more chaotic alignment (which makes relatively little difference) and his slightly higher MR. As a major demon, Nalzok hates silver and respects Elbereth.
Nalzok is Moloch's cunning and unfailingly loyal battle
lieutenant, to whom he trusts the command of warfare when he
does not wish to exercise it himself. Nalzok is a major
demon, known to command the undead. He is hungry for power,
and secretly covets Moloch's position. Moloch doesn't trust
him, but, trusting his own power enough, chooses to allow
Nalzok his position because he is useful.