Jhiaxus of Tesarus Minor made a name for himself in the years that followed the First Cybertronian Civil War, becoming Nova Prime's chief theoretical strategist—a pioneering scientist whose experiments revolved around the development of the Cybertronian species and a mentor to an idealistic young Shockwave. Few knew that he was also completely without morals, and not at all averse to performing horrible experiments on his fellow Cybertronians in the name of science.