Luffy's strength grew in Wano, reaching Yonko level with Gear 5 and Conqueror's Haki. Imu is a powerful enemy, stronger than anyone Luffy has faced, and even pales compared to Kaido.

Luffy as seen in the Wano arc. (Image via Toei Animation) Series protagonist and recent Advanced Conqueror’s Haki (ACoC) user, Monkey D. Luffy, already has a strong case for his inclusion here ...

He is also a master of Haki and even taught Luffy how to use it during the One Piece timeskip. Conqueror's Haki users have the ability to dominate the willpower of weaker targets. They can even ...