Osul are a tribe of yaungol raiders spread across the Townlong Steppes that are trying to push their way into Kun-Lai Summit through the Ox Gate.
A large army of their warriors made their way into the
Shado-Li Basin, aided by their allies, the Gai-Cho tribe. They brought a powerful war host to bear, utilizing siege weaponry, and even managed to hold a small section of the wall for a short time,  before their leader,  Gong Da, was slain.
Fire Camp Osul, they plotted further incursions into Kun-Lai, led by the newly-appointed Jung Duk, who rose to power through treachery. In response, a  Shado-Pan counteroffensive attacked them where it hurt: releasing their corralled Long-Haired Yaks and Steppebeasts, stealing the highly flammable  pitch they used on their weaponry, and freeing the  Longying Rangers they had captured. Ultimately, Jung Duk was slain, though there were casualties.  Lin Silentstrike was among their victims, which indirectly caused the demise of the Palewind tribe.
Mist-Shamans, led by Jahesh of Osul, have invaded the Upper and Lower Sumprushes, using torches to drain the Mistwalkers of their vitality. These shaman were defeated, however, by the combined might of  Golgoss, Arconiss, and Orbiss, who sacrificed themselves to save their people.
Beta The subject of this section did not make it out of the beta stages.
Siege weaponry The subject of this section did not make it out of the beta stages.