Rostam donned his magnificent armor, slipping into the imperious Babr-e Bayan over his breastplate and fastening his heavy war helmet. Invoking the almighty name of Yazdan, he mounted Rakhsh, whose mighty strides shook the very foundations of the earth and darkened the horizon with dust. War horns blared from both hosts, darkening the skies with thunder. Kamus of Kashan aligned his fierce forces on the right flank backed by war elephants, the Indian commander arrayed the left, and the Khagan of China anchored the center. Opposing them, the Iranian commanders—Fariburz, Tus, and Goudarz—stood ready in steel.
Kamus rode forth like a maddened elephant, brandishing a bull-headed mace and roaring for a warrior to face him. The Iranian champions—even Tus, Rohham, and Giv—hesitated, knowing the devastating prowess of the Kashani warlord. Then, Alva'i of Zabulistan—Rostam's loyal spear-bearer who had learned the martial arts from the Titan himself—drew his blade and charged. Though Rostam warned him against overestimating his strength against such a formidable foe, Alva'i engaged Kamus. With ruthless efficiency, Kamus unhorsed Alva'i with a single spear thrust and trampled him beneath his steed's hooves until the earth ran red.
Anguished and enraged by the loss of his follower, Rostam loosed his sixty-coiled lasso and rushed into the fray like a ravenous lion. Kamus scoffed at the leather rope and swung his brilliant sword, striking the neck of Rakhsh, but the enchanted horse armor absorbed the blow unharmed. In an instant, Rostam cast the lasso around Kamus, dragging him from his saddle and slamming him hard to the earth. Bound tight like stone, Kamus was brought back to the Iranian lines. Rostam reminded his men of the fleeting nature of mortal pride before throwing Kamus to the ground, where the Iranian champions cut the fallen warlord to pieces, ending his reign.