Marvel: Body Transformation

Ashley Crawford (Big Bertha)
Ashley Crawford is a mutant with the primary ability to alter the height and mass of her body by a tremendous degree. When she uses her powers, she gains an additional 15 inches in height and adds approximately 630 pounds of tissue to her frame. The source of this additional size isn't known, but it is presumably extra-dimensional. When she wishes to return to her normal form, Ashley has to make herself throw up.
 * Superhuman Strength: Transformed into her Big Bertha form, Ashley's physical strength is increased to superhuman levels. At her peak, she is able to lift 50 tons. Her great strength also extends into her legs, allowing her to leap great distances and heights.
 * Superhuman Durability: While transformed, Ashley's bodily tissues are much more resistant to conventional injury than those of a normal human. She can withstand high caliber bullets, exposure to temperature extremes, falls from great heights, and great impact forces without sustaining injury.