Costume: Instead of his usual green hero suit, Villain Deku might wear a black

Costume: Instead of his usual green hero suit, Villain Deku might wear a black, tattered version with a torn cape. His outfit could have red and dark purple accents, giving it a more sinister look. Mask: He could have a half-mask that covers his face, perhaps with a jagged design or eerie, glowing eyes to emphasize his villainous transformation. Expression: His expression would be intense and cruel, with a fierce gaze that conveys his new, darker motivations. Quirk Effects: His power might manifest with darker, more destructive effects. For example, his "One For All" abilities could appear more chaotic and uncontrollable, with crackling black energy or fiery red sparks.