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HistoryThis section concerns content exclusive to the Warcraft novels or short stories.
During the ancient battle between the titan-forged and the Black Empire on primordial Azeroth, Aman'Thul ripped Y'Shaarj's body from the surface of Azeroth, tearing it apart and killing it in the process.
Some time after the fall of the Black Empire, when the old gods were no longer a threat, the titan-forged keepers of Azeroth began using the Forge of Wills to give life to Azeroth. During an expedition to southern Azeroth to install the Forge of Origination, Highkeeper Ra discovered that fragments of Y'Shaarj's corpse had fallen, scattered across the landscape when it had been ripped apart. These fragments had infused the land with evil. The largest piece was the Heart of Y'Shaarj. Ra built a subterranean vault to contain and neutralize the evil void energy which emanated from the icy heart, instructing the Mogu to keep watch over the heart and the surrounding lands.
In World of WarcraftThis section concerns content exclusive to Mists of Pandaria.
In Patch 5.4.0 Garrosh Hellscream was infused with the power of Y'Shaarj, the Dark Heart of Pandaria, as he corrupted the Vale of Eternal Blossoms using the Heart of Y'Shaarj. The act turned the vale into the Vale of Eternal Sorrows and unleashed the Sha of Pride. This was the final straw which convinced both factions to begin the Siege of Orgrimmar.
- Patch 5.4.0 (10-Sep-2013): Added.