Like all members of the Shi'ar Imperial Guard, Arc lived to serve their Empress, Lilandra. Arc spearheaded the Guard´s first strike on the X-Men after Lilandra, under the mental control of Cassandra Nova, had ordered the destruction of all mutants on Earth. Without question or hesitation, Arc rounded up his squad and captured Cyclops and Xorn. The Guard took them to the orbiting Shi'ar super-destroyer to await execution - but these X-Men´s date with death was never to be. The pair escaped, and Beast subsequently defeated Arc in battle.
Powers and Abilities
Bio-Electrokinesis: Generation of heightened levels of bio-electricity within his body which project outwards.