Angmo-Asan took the throne of Sakaar after the death of his father Angmo. While Angmo was honorable, Angmo-Asan was brutal and cowardly. He often staged gladiatorial games in a Roman-style coliseum.
When Captain America, Captain Marvel, Doctor Strange, and Thor were sent to the Sakaar sector of Chronopolis by Attuma, Angmo-Asan forced them to fight his soldiers as well Hulks from different realities, including their reality's Hulk. When Hulk was freed from his control, Angmo-Asan increased the stakes when he battled the heroes personally while riding a Sakaaran worm, hoping to earn the respect of Kang the Conqueror. Angmo-Asan was eventually defeated by the heroes after they disabled his worm mount.
He wields a high-tech exoskeleton war suit to increase his physical strength and speed to superhuman levels. It also allows flight via jets in the feet and the ability to shoot fire and missiles.
Huge sword, exoskeleton's weapons
Flight via his exoskeleton