Galran Deathblack Beastmen are alien beast fighters, serving as the apex of Galran technology and dark magic, sent by Honerva against GoLion. Anyone captured and enslaved by the Galran Empire are immediately herded into the arena on Planet Galra where they are forced to fight to the death against the larger, powerful, and deadlier Beastmen who easily kill them before an enthusiastic crowd. Then the slaves are butchered and made into slave stew, a favorite gruesome dish for the Beastmen to eat. Anyone who survives fighting the Deathblack Beastmen are subjected to Honerva's dark magic that changes them into Beastmen to fight GoLion.