who can beat luffy

It's hard to say. Both Luffy and Goku are incredibly powerful in their own universes, but their powers and abilities are quite different.

Yes, Luffy does eventually defeat Kaido in the manga after an intense battle.

Sure did. Luffy overcame many challenges and ultimately emerged victorious against Kaido. It was a long and hard-fought struggle that showcased Luffy's growth and determination.

Luffy managed to beat Doflamingo through his determination and strategic use of his powers. He also had the support of his friends.

Luffy beats Kaido by unlocking new powers and exploiting Kaido's weaknesses. He also gains support from his allies and uses teamwork to his advantage. The battle is intense and filled with unexpected twists.

Luffy's victory over Doflamingo in the manga was a combination of factors. His growth in strength, his unwavering will, and his ability to adapt to Doflamingo's tactics all played a role. Additionally, the support of his friends was crucial in tipping the scales in his favor.

Wu Zhu was considered one of the grandmasters at the peak of martial arts and possessed powerful sword techniques. The Shadow was Chen Pingping's personal guard. Although he had been taught by Wu Zhu, his strength was not as good as Wu Zhu's. Thus, according to the information provided, the shadow was unable to defeat Wu Zhu. In addition, the Qing Emperor was described in " Celebrating Years " as the pinnacle of human combat power. He possessed top-notch mental strategies and martial arts. The Qing Emperor practiced Tyrannical zhenqi, which contained a lot of zhenqi. However, other than zhenqi, the Qing Emperor was not much different from ordinary people. Although there was no clear mention of whether the Qing Emperor could defeat Wu Zhu, according to the information provided, Wu Zhu's strength was considered invincible, so it could be inferred that Wu Zhu could not be defeated.

Emperor Qing defeated Wuzhu in "Celebrating Years." Although Wu Zhu had powerful strength and special abilities, the Qing Emperor was the true leader of the Four Great Grandmasters. His King Path Fist and Tyrannical zhenqi were both very powerful. In their battle, the Qing Emperor won by a narrow margin and defeated Wu Zhu. In addition, Fan Xian also participated in the final battle. In the end, the Qing Emperor was secretly killed by Fan Ruoruo. Thus, the Qing Emperor was the only person who had defeated Wu Zhu in " Celebrating Years."

Nami could also be a common character. She might help Luffy manage the financial aspects of his admiral duties, as well as use her navigation skills to assist in any navy - related voyages. And of course, she'd be there to keep Luffy in check when he gets too carried away.

Rayleigh would be a great candidate. He's an experienced pirate and has already trained Luffy for a while. He has a lot of knowledge about the world of pirates and could give Luffy a talk about the deeper secrets of the Grand Line or how to deal with the powerful enemies that lie ahead.