Gem of Tetsurri

The Gem of Tetsurri was an ancient artifact belonging to an evil warlord from [{Zaterra]] called [{Tetsurri]].

Its history was so deep that even Raiden believed it to be nothing more then a legend. The gem was located in the Realm of Zaterra where it was guarded by a magical flaming skull in the desolate forsaken realm. It appeared as a red oval shaped jewel which was capable of infecting people with blinding hatred making friends turn against one another and armies destroy themselves due to the hatred.

Though it was called a gem, it was not a jewel but infact an ancient crystalized heart of its owner. It was a demon stone capable of darkening the soul with its power being only capable of being unleashed by a powerful sorceror. The effects of the gem only grew progressively worse with simple arguments eventually leading to souls so dark that they tried to kill one another. However, its effects were not limited to a persons enemies and those who unleashed its power were also threatened to be consumed by it. The powers of the gem protected it from harm though the strongest and most skilled fighter was capable of shattering it.

Quan Chi used a portal from Earthrealm to enter Zaterra and retrieve the gem in order to unleash its powers on the defenders of Earth. It was ultimately destroyed by Nightwolf.

Source

 * Defenders of the Realm - The Secret of Quan Chi