C551 Thaumaturgy
He let out a roar that pierced the heavens, and as a radiant light burst forth from his forehead, his body began to swell uncontrollably. Within moments, he had morphed into a colossal rat, stretching hundreds of feet in length.
The massive creature, with its pitch-black fur and saber-like teeth, resembled a python's long tail, exuding an overwhelming presence that left onlookers gasping for air