The blue skinned alien named Myla was introduced as Moondancer being first seen as a member of the Shi'ar Imperial Guard during the crisis that came to be known as Operation: Galactic Storm. She was among a small strikeforce that battled the cosmic deffender Quasar in outer space, keeping the young Avenger busy long enough so that he would not interfere with the launch of the Nega-Bomb - the weapon that ended the war by killing 90% of the Kree population.
Deciding that Quasar was needing serious help, Moondancer and her fellow Guardsmen Voyager and Solar Wind quit the Imperial Guard after they wished to help Quasar battle the enigmatic Stranger. The three Guardsmen had been captives of the Stranger for several years, and wanted to take the opportunity to exact their revenge. After the Guard's leader, Gladiator, ordered the trio not to become involved, they resigned from active duty.
Moondancer has an apparent natural ability to pinpoint the location of any object in the vast expanse of space. Altough her maximum distance has not been discovered there are reports of her locating objects/people from her own Shi'ar galaxy to Earths, knowing exactly where it/they are that she was searching for. She often works closely with her fellow Guardsman named Voyager, who has the ability to open teleportation gates. With their combined powers they stage a perfect combination of tracking and transportation wed as one.