King Goshtasp entrusted the sable-black charger Behzad, along with war-armor and a forged steel helmet, to young Bastur. Girding his loins for vengeance, Bastur mounted Behzad and galloped directly to the frontlines of the host. Standing resolute before the enemy ranks, he drew a cold sigh from his chest and roared: 'I am Bastur, son of the valiant Zarir! Even a ravenous lion dares not face me! Where is that sorcerer Bidarafsh, who seized the royal Jamshidi banner?' Receiving no answer, he spurred Behzad forward and charged into the Turanian lines, felling countess Turanian champions; none dared stand against his wrath. Meanwhile, on the other flank, Esfandiyar was smiting the enemy without number.
When Arjasp, the ruler of China and Turan, beheld the youth's martial prowess, he marvelled to his commanders: 'Who is this warrior who hurls spears with such mastery? Has Zarir risen from the dead? For Zarir fought me in this very manner when he first charged our lines! Where is Bidarafsh? Summon him to me at once!' Bidarafsh the sorcerer arrived roaring, bearing the stolen purple banner, clad in royal mail upon his majestic steed. He brandished the very poison-soaked blade with which he had slain Zarir. Bastur and Bidarafsh clashed fiercely, trading javelins and arrows.
Word reached the glorious prince Esfandiyar of this perilous duel. He spurred his warhorse and thundered toward them. When the master of sorcerers saw Esfandiyar approaching, he knew a champion of unmatched power had descended upon him; trembling, he turned his steed and hurled his poison-dipped blade straight at Esfandiyar's face to disfigure the prince's radiant countenance. But the venomous blade could not harm Esfandiyar, who firmly snatched the weapon mid-air. With a swift, mighty blow, Esfandiyar drove his spear right through Bidarafsh's liver, the point emerging from the sorcerer's back. Like a hunted deer, Bidarafsh fell from his saddle and perished.
Esfandiyar dismounted, stripped Zarir's armor from the old sorcerer's corpse, severed his vile head, and reclaimed Zarir's sable steed Behzad along with the glorious Jamshidi banner. The Kianid army raised a triumphant shout that echoed to the heavens: 'The Prince has prevailed and struck down the foe!' Esfandiyar rode back to King Goshtasp, presenting Zarir's horse and laying the sorcerer's severed head before the throne, proclaiming: 'The slayer has been slain—such is the unyielding law of divine justice!'