White Swan

White Swan (born Gwen Stacy) is a Marvel Comic super-heroine and one of the core protagonists in Avengers Unleashed.

Early Life
Gwen has been dear friends with Peter and Mary Jane since she was 10 years old. At the time, she and Mary Jane were among the first people to learn Peter was Spider-Man right after a lab-spider of Oscorp bit him and, later on, accompanied him at Uncle Ben's funeral after Uncle Ben was killed by an unknown burglar. At the age of 13, Gwen took part of her widowed father George Stacy's marriage with May Reilly, which made Gwen and Peter step-cousins.

The Thunderbolts' Tyranny
Later at the age of 15. Gwen was among the citizens who oversaw (and properly protested against) J. Jonah Jameson's election as Mayor of New York and his organizing of the Thunderbolts. Like most citizens, Gwen only believed that the "new heroes" were nothing like the Avengers. Later on, she and some citizens watched as Hydra agents led by Arnim Zola exacting to create a new Super Soldier Weapon using the DNA of metahumans channeled through a diamond stone. Though the Thunderbolts managed to stop Zola’s plan, the battle resulted in Gwen getting injured and hit by one of the diamond’s scattering shards. As Gwen was given medical attention, Peter angrily vowed that Jameson and his Thunderbolts would pay for the incident, although Hank Pym still reminded him of Uncle Ben’s words about Justice over Revenge. Suddenly, Peter and Pym ended up discovering an teleportation portal to the Nest of Helios, a Paradise Island ruled by Andrea Carter, the first host of the Light Side of the Phoenix Force, who offered them the mission to help resurrect the Island’s omnipotent guardian entity Light Phoenix in exchange of helping bring back the Avengers and end the Thunderbolts’ tyranny. The two accepted and Peter was made a member of the new generation of the Phoenix Corps by a dying elder. As Peter left with the Tribe’s messenger Redwing and the Phoenix Corps’ commander Jean Grey to find the new recruits, Gwen was shown recovering from her injuries as the shard which was stuck in her merged with her body and her eyes ignited energy light.

New Powers
As Peter travelled around the world with Jean and Redwing to recruit the new members of the Phoenix Corps, Gwen woke up to discover that the diamond shard which merged with her has given her the powers of the metahumans Zola’s men captured (including Flight, Telekinesis, Telepathy (from Wanda Maximoff), Electricity (from Max Dillon / Electro) and the ability to turn her body and skin into pure indestructible diamond (she can also turn her arms into weapons (similar to the Carnage symbiote hosts) at this state) which was manifested from the diamond itself) and trained to use them for the greater good.