Ul'zrokith

Ul'zrokith is an ancient Sargerite Keystone, a sliver of Sargeras' essence compacted into a crystalline cluster shortly after his transformation into the Dark Titan. For countless ages, the artifact was kept secured in the deepest depths of the Twisting Nether, warded many times over from Sargeras' hungering demons.

While serving the same basic function of other Sargerite Keystones in that it could open the way to thousands upon thousands of worlds, Ul'zrokith was also infused with the power of memory: specifically, Titanic memories of Sargeras from the eons of his service among the Pantheon. For this reason, Ul'zrokith is also referred to as the Stone of Creation.

Acquisition
During the rapid expansion of Keyadishan's revitalized Burning Crusade, several of his fel orc and demon servants discovered a world rich in natural resources as well as tremendous volcanic activity suitable for large-scale forgeworks. Interested in this acquisition, the Legion mobilized and arrived on the planet, only to discover that it was in fact not a planet at all. They had reached an ancient plane of fire named Zuphus, from which the primal element of flame sprang forth across the cosmos. Now dedicated to conquering and utilizing this new discovery, the Legion overwhelmed the denizens of Zuphus and bound their lord, a Fury of Fire, before it was able to fully awaken and wipe out the invaders. Soon claiming Zuphus as his, Keyadishan tasked the fel orc Grommal Fireblade with building a gargantuan foundry that would supply the Legion with endless primal fire for their machinery.

As the two finalized their plans for Zuphus, further investigation of the Fury of Fire revealed that it had been guarding Ul'zrokith, the Stone of Creation.

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The Ul'zaldor is a part of Sargeras. When he became the Dark Titan he severed a part of his soul and its essence was forged into this mighty Artifact. The Artifact was hidden in the depths of the Twisting Nether for most of the time - nobody from the Legion has ever found it, it was hidden by Sargeras and had many wards that had to be broken before being able to access it. The Stone of Creation has multiple uses, it can track down any demon in the universe. By Keyadishan it is refereed to as the 'True' Sargerite Keystone, as it does have the same function - open portals to thousands of worlds, but that is just 1, the artifact has much more... The Artifact also contains all the memories of Sargeras right until his downfall. Many more hidden functions are remained to be found, who knows what else the Artifact can do?