The Ul'Vor Staff was a mysterious magical stave that shared a name with the underwater Sea Sload kingdom of Ul'vor Kus. It was an ancient relic believed to originate from there. Around 2E 582 it is known to have been in the possession of the Psijic Order on Artaeum. Around this time, a Sea Sload named K'Tora invaded Artaeum and captured Ritemaster Iachesis. K'Tora attempted to extract the Ritemaster's deepest memories using the Orbs of B'Raken Drel, but his plan was foiled when the Vestige, with the aid of a Psijic named Valsirenn, retrieved the staff from the Psijic Relic Vaults and used it to breach K'Tora's mind barrier and kill him.
The Umbra Sword is a Daedric artifact designed with the sole purpose of the entrapment of souls. Sometime before 2E 582, the ancient witch Naenra Waerr created the sword at the request of Clavicus Vile, who wanted the sword as a tool of mischief which would send him souls from the mortal realm. Naenra created the sword but it was unstable, requiring Vile to give the witch a piece of his power to be imbued in the sword in order to stabilize it. However, Naenra (sometimes accredited with being Sheogorath in disguise) supposedly tricked him, as the piece of Vile's power imbued in the sword became a sentient being which called itself Umbra. Naenra was executed for her evil creation, but not before she hid the sword. The sword took on a life of its own, remaining hidden until a worthy wielder was found. Umbra then slowly takes control of the wielder. The Umbra Sword has the ability to change shape, but it is always in the form of a bladed weapon. It has been reported as a black and silver claymore, a jet black longsword and as a black sword emblazoned with red markings. The sword is also known to have the ability to absorb the health and stamina of those it strikes.