The Obsidian Sphere was an item used by Raziel in Legacy of Kain: Defiance. Discovered beneath Avernus Cathedral, the Sphere was collected by Raziel in the chapter Seek Mortanius and was ultimately used to open the Warp Gate leading to the Earth Forge within the Vampire Citadel.
The Obsidian Sphere was a quest item in Legacy of Kain: Defiance that was used by Raziel in the chapter Seek Mortanius as he explored Avernus Cathedral in the events of Blood Omen.[Defiance][Defiance/10][Defiance strategy guide]
Sent to Avernus by Vorador in the chapter Find Vorador to search for the Heart of Darkness, Raziel arrived in Avernus Cathedral at the start of Seek Mortanius. Exploring the Cathedral, Raziel found a door at the back of the Cathedral that was sealed by elemental water. Using the Water Reaver to open the door, Raziel found the Earth forge outer chamber within marked with the Earth elemental symbol on the floor with an empty stand in the middle.[Defiance][Defiance/8][Defiance/10][Defiance strategy guide]
Defeating the four Vampire golems that animated as he descended into the chamber, Raziel was able to spawn several Earth platforms which allowed him to jump up to a higher ledge surrounding the room where he could discover the Obsidian Sphere on a similar stand.[Defiance][Defiance/10][Defiance strategy guide]
Recovering the sphere and taking it down to the lower stand, Raziel could place the orb there and this activated the item, powering the nearby warp gate which led to the Earth forge within the Vampire Citadel.[Defiance][Defiance/10][Defiance strategy guide]
- Although not identified in dialogue, the Obsidian Sphere is explicitly named as such in the inventory and its name is reiterated in the official guide. The Sphere is labelled in game files as "av_earthartifactkey" and its final holder is listed as "av_earthartifactlock".[Defiance][Defiance/10]
- The name "Obsidian Sphere" suggests that the item is constructed or formed from Obsidian - a igneous rock formed in volcanoes from quickly cooled lava, which gives it a characteristic glassy appearance and black and red color.
- The Obsidian Sphere is one a number of related artifacts that are found in forge portal rooms and immediately used to access the portals. Other artifacts that are treated the same include the Faceted Orb for the Light Forge and the Howling Heartstone for the Air Forge.[Defiance][Defiance/4][Defiance/6][Defiance/10][Defiance strategy guide] Although not containing such 'keys', both the Dark and Fire forges have objects identified as "artifacts" in files that control portal activation, although they are not used in the same way the "key" artifacts are.[Defiance][Defiance/4][Defiance/6][Defiance strategy guide] Game files and textures reveal that the these 'artifacts' are similarly counted as an object rather than part of the room (although not as 'keys') and like the Faceted Orb they all have a subtle Darkness or Light symbols within their textures which are virtually invisible in the course of regular gameplay.[Defiance][Defiance/4]
- Like the other quest items in Defiance, the Obsidian Sphere appears in the secret "artifact1a" room.[Defiance]
- Earth Forge (Defiance)
- Avernus Cathedral
- Avernus Catacombs
- Vampire golems
- Earth platforms
- Seek Mortanius