Laynia Petrovna was born in Minsk, which at the time was part of the Soviet Union, and is now the capital of Belarus. When she grew up, she became a special operative of the Soviet government.

Darkstar was first seen as part of a Soviet super-team recruited to bring Natasha Romanoff (the Black Widow) back to the USSR. She turned sides and joined the Champions as guest member, remaining with the team until its disbanding. While with the Champions, she and Bobby Drake, the former X-Man known as Iceman, were close to entering into a romantic relationship, but Laynia only liked Iceman as a friend, not as a love-interest. She quit the Champions and returned to Russia, leaving behind a devastated Iceman.