Superalloy Darkshine

Superalloy Darkshine is an S-Class hero whose body has been trained to the absolute peak of human muscular development, giving his skin a brilliant metallic sheen that reflects all light. His muscles are so dense they are virtually indestructible, and his tackle attack can obliterate Dragon-level threats. Despite his overwhelming physical power, Darkshine's greatest weakness is his fragile self-confidence — a single crack in his perceived invincibility can cause him to mentally shut down.