One Piece's Wano Country arc saw Luffy and the Straw Hat Pirates finally take on their first big step on the grand stage by taking on one of the Four Emperors of the Sea, Kaido. Being a Yonko and, more importantly, the strongest enemy that Luffy had to face to this point, it was expected of him to establish himself as a significant character in the arc, just as all the biggest antagonists did in their arcs. The likes of Crocodile established himself as an incredible character as did Doflamingo, who is widely considered to be one of the best, if not the best, antagonists of the entire series.