Young wizard violently transforming into a hulking green beast

A young wizard in a Hogwarts robe, with a lightning bolt scar on his forehead, begins to feel an intense magical energy coursing through his veins, causing his body to contort and twist, his skin turning a deep green as he grows larger and more muscular, his eyes bulging out of their sockets, his fingers elongating into massive claws, his voice booming with a deafening roar as he transforms into the Incredible Hulk, a fusion of magical and gamma-irradiated might.