History and Characteristic
Its history was so deep that even Raiden believed it to be nothing more than just a legend. The gem was located in the Realm of Zaterra where it was guarded by a magical flaming skull in the Sphere of Tetsurri. It appeared as a red oval shaped jewel which was capable of infecting anyone who was exposed to it with blinding hatred making friends turn against one another and armies destroy themselves due to the hatred from the gem.
Though it was called a gem, it was not a jewel, but in fact, an ancient crystallized heart of its owner. It was a demon stone capable of darkening the soul with its power only capable of being unleashed by an extremely powerful sorcerer. The effects of the gem only grew progressively worse with simple arguments eventually leading to souls so dark that allies would try to kill one another. However, its effects were not limited to a person's enemies and those who unleashed its power were also threatened to be consumed by it and the only way they could stop the gem's powers from affecting them was to return it back to Zaterra. The powers of the gem protected it from harm though the strongest and most skilled fighter was capable of shattering it.
- The Gem of Tetsurri is not the only enchanted reptillian heart featured in Mortal Kombat. The Dragon King's Heart figures heavily in the plots of both Mortal Kombat: Deadly Alliance and Mortal Kombat: Deception. Interestingly, both hearts were sought after by Quan Chi to increase his power.
- Mortal Kombat: Defenders of the Realm - The Secret of Quan Chi