He appeared in the realm of Feng-Tu, home to the honored dead of the people of K'un L'un. He led his warriors to overpower the tired and gentle spirits of Feng-Tu, and took over the realm for himself. He encountered Heather Rand, the mother of Iron Fist, who had died near the border of K'un L'un and ended up in Feng-Tu. Khan offered her the ability to escape from that reality, but then stole her soul into his Soulgem, and transformed her into his slave, the Silver Dragon. He transformed other natives of Feng-Tu into demons to serve his will. However, Dhasha Khan swiftly became bored with ruling the dead, and sought to takeover the realm of the living as well. To do this, he sought the power of the Firebird, the mystical embodiment of all that is good in mankind.
Dhasha Khan sent a mob of attackers to assault the woman Jade, who housed the spirit of the Firebird. Iron Fist happened upon this assault and fought off her assailants. Dhasha Khan then sent the Khou-Hun-Shih-Che, Niu T'ou the Black and Ma-Mien the White Ox, to attack Iron Fist and Jade and bring them to Feng-Tu. Iron Fist fought and overpowered them, but when he struck them with his iron fist power, he and Jade were transported before Dhasha Khan. Iron Fist attempted to stop him, but was blinded by a blast from Khan's soulgem. Nonetheless, Iron Fist remembered his training and defeated Khan's warriors. When the leaders of his guard remembered Iron Fist as the greatest warrior of K'un L'un and refused to attack him, Khan destroyed them. He then sent the Silver Dragon against Iron Fist, and she overpowered him and knocked him out, although she recognized him as her son. Khan then took the Firebird's spirit from Jade.
Iron Fist's spirit defeated the Soulslayer, met up with the man known as the Bowman, and the three made their way to the palace of Lord Tuan, his grandfather, and the former rule of Feng-Tu. While there, the Bowman apparently slew Iron Fist, in hopes of somehow saving the life of the Firebird. Iron Fist revived, now one of the dead in Feng-Tu, but he and Jade left the palace and attempted to escape Feng-Tu. Their path was blocked by Silver Dragon. This time the Silver Dragon refused to slay her son, and Dhasha Khan destroyed her body. While the fight had been going on, the Bowman rallied Lord Tuans' forces to overthrow Khan's, and retake control of Feng-Tu. Khan cared little, since his primary goal was to possess the Firebird's soul, and so he abandoned his forces to those of Tuan's.
Iron Fist attempted to attack Dhasha Khan, but he teleported to Earth, leaving Iron Fist trapped in the realm of the dead. Dhasha Khan accessed the power of the Firebird to begin transforming Earth into the form when the N'Garai ruled the Earth. However, before Khan could summon the N'Garai to Earth, Iron Fist used his chi to focus his will and bridge the gap to the world of the living. Iron Fist attacked and, after a lengthy battle, defeated Dhasha Khan. He took his Soulgem, reversed the changes on Earth, and returned the spirit of the Firebird to Jade.