Frozen Heart ( Wanda Maximoff x FemReader )

A young girl is gifted with unique powers. At her young age, she lacked any knowledge of how she would possibly be able to control it. The second time of she lost control came around and her powers actually started killing her. Lowering her own body temperature so dangerously low that she started developing frostbite at the tips of her fingers. Her brilliant mother steps in and saves her, but at what cost?

Years later the girl meets Wanda in the battle against the world's greatest heroes, alongside Ultron himself. Both girls lack the knowledge of their powers' full capabilities. But is that the only thing they don't fully understand?