The Legend of Eight Knights 1980 on netflix

Meteor City is planning an assault on the peaceful city of Yung. The king of Meteor City has employed the services of a demonic witch, with skills in black magic are second to none. However, Yung city is protected by 8 saintly knights of the Chinese eight virtues; Filial Piety, Sibling Harmony, Dedication, Trustworthiness, Propriety, Sacrifice, and Honor. With their saintly powers they manage to fight off the attackers and the demon witches magic powers, thereby restoring peace to the region.