The Final Saga of One Piece has seen quite a lot of attention being turned to the likes of Blackbeard and Shanks. These are two mighty individuals that fans know will be very important in this segment of the story and for good reason. Both Blackbeard and Shanks have a deep rivalry that even fans do not know the extent of. They are very well familiar with each other, and, Shanks truly knows the threat that Blackbeard actually poses.