Necromancer Moons (3.5e Equipment)
From D&D Wiki
Created eons ago by an unknown power, the Necromancer Moons are a pair of lethal crescent blades made of an unidentifiable black material. The Moons have the following powers:
The Tide of Undeath: When used on a slain foe, the target is animated as a Devourer loyal to the wielder of the Moon that used this power.
Fountain of Souls: The wielder calls forth the spirits of his last four victims he slew with his Moon to do battle for him. These spirits have the same stats that they had in life and carry half strength duplicates of a Necromancer Moon that vanish should the spirit be killed.
Fathomless Death: Creatures killed by the Moons can only be resurrected by the wielder of a Moon.
Black of Night: Anyone below half of the wielder's level is blind while within 25' of the wielder.