Orb of Death

Orb of Death is a magic pearl that enables the user to summon the undead.

Description
Native to the New World, this item allows the user to summon and supplement the undead. One of the most unique traits of this item is that it is fully sentient with desires of its own. It is able to communicate with its user through telepathy with physical contact.

Appearance
Besides its sinister name, its appearance isn't really noteworthy. It mostly resembles a black lump or a plain black pearl, but since its shape is rough it appears closer to the former. Ainz himself described it to be a bead that one could find off the riverbanks.

Personality
Given its power and name, the Orb is no doubt a evil creation. It has an obsession over death that borders on worship. Ever since its birth, its only wish was to spread death across the world. However, despite its power over the undead, it does respect those that are superior to it. For example, upon seeing Ainz Ooal Gown's power, who he declares as the Great King of Death, it swears it fealty to him and requests to join the ranks of the Great Tomb of Nazarick. Its willingness to serve Ainz is akin to the loyalty the NPCs of Nazarick have for him. The Orb is constantly arguing with his new wielder, Hamsuke, to return it to Ainz.

Abilities
The Orb of Death can allow a magic caster to cast multiple necromantic magics in a day. Thus, it is considered a valuable tool to necromancers. However, it also seems to be able to subtly use mind control and manipulate the user through fear, though it can't affect those who possess mind control resistance or are unafraid of it to begin with.