[I see your “death ray” pun, Hackmaster, and raise you.]
Necromanta This
great black ray has a pattern on its body resembling a leering skull.
Necromantas, sometimes called
death rays, are a member of the Abyssal fauna aside from the demons that rule
the Abyss. These awful creatures cruise the seas, lakes and rivers of the
Abyss, killing indiscriminately for the love of killing. They are stronger than
many demons, and powerful demons often rally up forces to slay these monsters
before their retainers and minions are too badly depleted.
A necromanta does not need to
eat, but gains great pleasure from killing creatures with their heavy blows and
negative energy beams. They are immune to negative energy, and may attract
schools of smaller, aquatic undead like draugrs or lacedons that swim in their
wake like pilot fish. Necromantas are native to the Abyss, but follow the River
Styx through the other lower planes and to the Plane of Water. They are always
on the lookout for portals to the Material Plane, as they find the suffering
and deaths of mortals more entertaining than those of other outsiders. A
necromanta has a wingspan reaching twenty-five feet and can weigh up to two
tons.