Shanks is one of the most important characters of all time in One Piece and it is safe to say that he can be considered to be a phenomenally powerful individual. When Shanks was first introduced in One Piece, fans did not know exactly how strong he was or, whether or not he would go on to be among the strongest. It was only after the events of the Enies Lobby arc that his status as one of the Yonko was revealed to the fans, which clarified his level of strength.