His First Obstacle- Periphetes
Periphetes, a son of Vulcan, was a vicious savage who always carried an iron club with him. When he saw Theseus approach, he violently attacked him. Theseus used the power of Periphetes's club, and reversed it on him. He quickly fell to Theseus's blows. Theseus kept the club as a symbol of his first victory.