Monkey D. Luffy is the protagonist of One Piece and one of the strongest pirates in the history of the Grand Line. He aims to conquer the Grand Line, find Gol D. Roger's legendary treasure, and become the King of the Pirates, but in order to do so, the Straw Hat Pirate will need to grow to become powerful enough to defeat any opponent that stands in his way.
One Piece: All Of Luffy's Forms, Ranked By Strength
Over the years, Luffy has gained access to several forms to combat his opponents at different times and overcome them with all his might.