The Abyssal Blade

As black as the depths of space, the Abyssal Blade is an eerie artifact constructed of an unknown substance. Even for a relic of the labyrinth the Abyssal Blade is an enigma. It suddenly comes alive with the cosmos when wielded. This blade has met relics from the dark age, hell-forged daemon weapons, and Xenos artifice edge to edge without breaking, and still intensive research by the Mechanicus has yielded nothing.
Artorius found the blade in a room sparkling in starlight, the sword suspended point down, floating above an infinite pool of water. The water reflects the false stars above. Once he took the weapon he once again found himself in the corridors of labyrinth. When sheathed the sword is unremarkable, its handle, guard, and pommel are all of a well-crafted but workman-like design.
Despite all its mystery and strange properties, the Abyssal Blade is just a sword. Seeming to have only the same cutting power as a master-crafted power sword.

Subtype / Model

Relics of the Labyrinth

Owning Organization

The Sons of Avalon