History: Sif, the sister of Heimdall, has been the constant companion of Thor and Balder since childhood. Like most Asgardians, Sif was born with golden hair. Hers, however, was turned black after Loki jealously cut it and replaced it with enchanted hair made by dwarves. At an early age she showed great prowess as a warrior and was considered the best female warrior in all of Asgard, matched only by Brunnhilde.
Personality: Sif appears to be an honorable warrior who is quite brave and ready to charge into battle no matter what the consequences. She, like other Asgardians, underestimates the battle prowess, intelligence, and worth of the mortals from Midgard.
Abilities & Resources: Sif shares powers common among all Asgardians, with her dense physiology granting superhuman strength greater than the average Asgardian female and on par with the average Asgardian male, limited invulnerability, as well as advanced stamina, speed, agility, and reflexes. Sif is also extremely long lived and maintains her youth and vitality through the consumption of golden apples. She is also highly skilled in hand to hand combat and proficient in use of cold weapons, favoring a sword and shield in battle. She is often said to be the best female fighter in Asgard, on par with Valkyrie..