Awakening the Witch
Sokovian native Wanda Maximoff and her twin brother Pietro survived an explosion in their apartment building that killed both of their parents. Another missile landed, but did not explode. It terrorized them for days as they remained stuck in the rubble, with the deadly device in front of them, the name Stark emblazed on its side.
Years later, they both volunteered to undergo genetic experimentation overseen by HYDRA’s Baron Wolfgang von Strucker, using Loki’s scepter, to potentially give them powers. One of the few survivors of the experiments, along with her brother, Wanda found herself with a variety of abilities. Alongside Pietro, Wanda went on to use these abilities to help the robot Ultron, who shared her disdain for Tony Stark.
However, when she and Pietro discovered the true nature of Ultron’s plans, they switched allegiances and joined the fight against him, putting Wanda on the path to become an Avenger.
The full extent of Wanda’s considerable powers has likely not been fully documented as of yet.