She leaves home at sixteen years of age to join Beta Flight, a team of superheroes trained and funded by the Canadian government. After performing well in Beta Flight, Marrina is promoted to Alpha Flight, although her field duties only begin after the team went freelance. She learns of her alien origin when captured by the Master of the World, and is rescued by Alpha Flight and Namor alongside the Invisible Woman. Following this she leaves Alpha Flight and stays with Namor. Marrina is captured by Attuma, and reverts to savagery for the third time but overcomes it. Marrina marries her lover, Namor. She serves alongside him on Avengers missions and receives honorary membership, and also serves as the queen of Deluvia.