Rulfo was a young mage of Dalaran who lived an unknown number of years ago. He found items that were believed to date back to the era after the titans ordered Azeroth, and received visions of that time period. The visions eventually drove Rulfo mad, and his mangled body was found dead one day. The reports say he fell off a mountain.
Jaina Proudmoore, having read about Rulfo's death, is worried that the same fate shall befall Kalecgos after he found an item once belonging to Tyr and also began receiving visions of early Azeroth.[1]
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Rulfo
