Harald's Haki is some of the strongest in history.

As to why Shanks's twin is on Elbaf, fans will have to wait to see. Perhaps, he has a message for the Giants from the World Government, and brings impending doom.

King Harald of Elbaf is one of the newly introduced yet one of the important characters in One Piece, find more about the ...

His role isn't the free the world, and just like Roger, he is there to bring out a new era. Shanks is the definition of being the Roger of this era, and Luffy is set to parallel someone else.