Blood commands the Decepticon Pretenders, having crash-landed on Earth in the Stone Age while evading Autobot pursuers led by Metalhawk. Adopting a vampiric monstrous form, he sowed terror among early humans, seeding European legends of blood-drinking entities. After his defeat, Autobots sealed him within an Egyptian sarcophagus alongside his cohorts. Centuries later, the entity Devil Z resurrected him to spearhead a new Decepticon faction dedicated to forging human-Transformer hybrid warriors.

A ruthless strategist, Blood dominated rivals like the insubordinate Dauros through psychological manipulation and brute force. His arsenal included hypnotic control over humans, corpse reanimation into Destroid soldiers, and heightened lethality in darkness. Exploiting these powers, he orchestrated ecological chaos—triggering animal stampedes, assaulting settlements, and abducting scientists to refine his undead army. Dependency on Devil Z’s unstable energy forced transitions to living human test subjects as decaying corpses proved ineffective.

As Devil Z favored newer recruits such as the Godmasters Hydra and Buster, Blood’s influence waned. Resentful of subordination to commanders Giga and Mega, he launched unsanctioned strikes against Autobot Godmaster Ginrai, though internal rivalries and Autobot counterattacks thwarted these gambits. Subsequent campaigns—assaults on Viscas Island and a British Motors facility—ended in crippling defeats, including limb loss.

Blood’s ultimate fate remains ambiguous following Devil Z’s demise. Last observed fleeing the entity’s final collapse, his allegiance to Overlord’s spacefaring Decepticons or continued Earthbound existence is unconfirmed. His vampiric Pretender shell—a bat-winged humanoid hybrid—mirrored a Cybertronic jet alt-mode equipped with VTOL turbines and modular blasters. Marketed in the West as Bomb-Burst, the toy replica retained his design unaltered.