Black Light appeared as a member of the Shi'ar Imperial Guard when Deathbird, who was Empress at the time, commanded the entire Guard to fight the combined forces of the Starjammers and Excalibur so that she could claim the power of the Phoenix Force for herself.
During the battle, Black Light and his sister White Noise attacked Captain Britain but were subsequently struck down by the Starjammer Raza. When Deathbird was attacked by Lilandra, the siblings came to Deathbird's aid, referring to her as their mother. The entire Imperial Guard then fled through an abandoned teleportal.
Powers and Abilities
Dark Energy Blasts