History
Darmo was a member of the inner council of the Overseer, the patriarch of the planet Spyre.[1] When four explorers from Earth attempted to reach Spyre but they had their rocket ship scuttled by a cosmic ray storm that gave them powers, becoming the Fantastic Four, the Overseer dreaded the threat they could pose if they were to resume their original mission now that they had powers.[1] To this end, the Overseer decided to harness cosmic rays himself and give powers to volunteering Spyricans in hopes to combat the Fantastic Four if they were ever to arrive.[2]
Darmo was one of the first to subject himself to the Overseer's procedure.[1] His arms were replaced by metal that he could shape-shift on command, and he adopted the identity of Sidearm.[2] Along with other few superpowered Spyricans, Darmo joined the Unparalleled to become one of Spyre's protectors.[3] One of Sidearm's teammates was his own daughter, Kaila,[4] who gained avian-related abilities and adopted the name of Sky.[3]
Over a decade after their initial and failed attempt to reach Spyre, the Fantastic Four sought to complete their original mission.[5] When they approached Spyre, the Overseer warned the Unparalleled of their arrival. The team intercepted the explorers and subdued them, but the Fantastic Four managed to establish that they meant no harm.[2] However, when Mister Fantastic deduced that the Overseer had been secretly responsible for tampering the intensity of the cosmic ray storm that bestowed the Fantastic Four their powers, the Overseer ordered the Unparalleled to kill the visitors.[3]
After Mister Fantastic and the Invisible Woman slipped away, Sidearm was one of the Unparalleled deployed to the streets of Hightown to defuse a rebellion from the Monster Mob, the outcasts of Spyre who had been banished from society due to the Overseer's cosmic ray exposure turning them into monsters.[1] Once Mister Fantastic exposed the Overseer's secret role in the creation of the Fantastic Four, making him responsible for the very threat the Spyricans feared, The Thing confronted the Overseer at the Tower of Over-Site, causing its collapse. The Unparalleled, the Monster Mob and the Fantastic Four joined forces to contain the falling debris.[6] After the Unparalleled and the Fantastic Four made peace, Mister Fantastic shared with the Spyricans a cure to temporary revert cosmic ray mutates back to normal, which helped welcome the Monster Mob back into society. Despite his powers not affecting most of his appearance, Sidearm decided to undergo this procedure so that he could touch his loved ones with his real hands again, having also acknowledged that he was no different than the Monster Mob and vice versa. Later, the Unparalleled bid the Fantastic Four farewell as they prepared to return to Earth accompanied by Sky.[4]