Brushguard embodies the dark side of science. One of several specialists has entrusted to use his skills to benefit the Decepticon cause, Brushguard's field of expertise is botany. Plant life's threatening vines, thorns, and deadly toxins fascinate him, and he longs to unlock their secrets. He dislikes dealing violence personally and would prefer his enemies face his vile,verdant creations.
After the search for the Cyber Planet Keys was over, and Galvatron was destroyed, Brushguard joined the crew of the as 's science officer. He was part of the captain's plot to steal a powerful Force Chip from the crashed Autobot starship on the planet . After sending the mercenary in to soften up resistance on the legendarily dangerous planet, Brushguard arrived in a shuttle with his captain and crew to claim the prize. Confronted with the giant creature known as , Brushguard assaulted it with his botanical horrors, including a sphere containing fast-growing techno-organic vines and a bio-mechanical corrosive found on . The Decepticon pirates soundly defeated Synthos, but were undone by the Autobots who hijacked their hovering shuttle and made off with the Force Chip. Brushguard and the pirate crew had to wait for the to rendez-vous with them before they could leave the planet. The Force Chip was gone, but Cannonball had uncovered something just as profitable—the which had empowered Synthos. Brushguard was put to work unlocking the secret power of the black crystal for his captain.
Though Brushguard believes completely in Decepticon supremacy, the cousin of the was lured to Megatron's team with the promise of money. Brushguard spends this money on his secret passion, science-fiction B-movies. His favorite is possibly though the moral would be lost on him. He'd root (ha ha) for the plant.
assigned Brushguard command of the and sent him to scour the galaxy for . Driven to distraction by the constant nattering of the s motley crew, Brushguard nevertheless found the war-torn planet . Seeing the planet as a goldmine of abandoned weaponry and abandoned tombs, and learning, thanks to his botanical skills, that the planet's wars were long-finished, Brushguard sent his crew to explore it. Soon, stumbled upon an abandoned bunker, and after Brushguard used to disable its security system, the Decepticons gained access to the "doomsday arsenal" within. Before they could escape the planet with their purloined weaponry, however, Brushguard and his crew came under attack from the crew of the , which had also discovered Combatron. After retaliating with an army of , Brushguard came under attack from the Combatronian warrior . Brushguard impaled him with a vine spear, and soon found the other Autobots overwhelmed by his forces. Brushguard barely had time to gloat over his victory before Whirl's allies hijacked the and sacrificed the to destroy the arsenal bunker. With his Decepticlones destroyed and his ship gone, Brushguard and his charges were stranded on Combatron, forced to plead with the enraged Megatron for a ride home...