Brook is the ninth member of the Straw Hats and the musician of the team. He is also one of the funniest characters, introducing a fresh sense of humor to the series; a bare bones speaking skeleton with afro hair and lame jokes.

RELATED: One Piece: 5 Other Crews Brook Would Love To Join (& 5 He Would Hate)

Nevertheless, Brook is the second-best swordsman of the Straw Hats and arguably one of the fastest characters in One Piece. In the Big Mom arc, Brook stood toe-to-toe against the emperor of the sea Big Mom and managed to hurt Zeus. The Soul King is a rising power within the Straw Hats, and a character who can play a major role in the Wano arc.

10 Cannot Beat: Jack

Jack arrives at Wano in One Piece.

Jack is one of the three All-Stars serving under the emperor of the sea Kaido. Jack the Drought ate the Elephant-Elephant Devil Fruit, which is an ancient Zoan type that enables him to turn into a huge mammoth. In Zou, Jack destroyed the entire country while looking for Raizo. Right afterward, he went on attacking four navy battleships that had an Admiral, Inspector General, and a Great Staff Officer on them. In terms of power, Jack the Drought is a real monster who can easily overthrow Brook.

9 Can Beat: Babanuki

beast pirates Babanuki

Babanuki is the Prisoner Mine warden in Udon. Like most beast pirate members, Babanuki is an artificial devil fruit user with a living elephant dangling from his stomach. Babanuki has full control over the elephant, but it does act independently sometimes. This gives Babanuki the ability to fire up powerful attacks at his enemies. Babanuki’s attacks are based on using the elephant’s trunk to shoot powerful explosives. However, if he were to fight the Soul king, Babanuki would not stand a chance against Brook’s speed.

8 Cannot Beat: Eustass Kid

Eustass Kid

Eustass Kid is a Worst Generation pirate who caused quite a bit of trouble for the World Government. Kid also shares some common features with Monkey D. Luffy.Both of them are captains who are fighting over the Pirate King title, and want to take down the emperors of the sea.

RELATED: One Piece: 5 Characters Stronger Than Eustass Kid (& 5 Who Are Weaker)

Eustass Kid also ate the Magnet-Magnet Fruit which gives him a high attack power. Although Brook can deliver fast attacks, Kid can easily create a steel mantle to protect himself. Moreover, Kid could take Brook’s sword with his ability.

7 Can Beat: Fukurokuju

beast pirates Fukurokuju

Fukurokuju is a member of the Beast Pirates and the leader of a large group of ninjas. Fukurokuju is a hideous character who has neither pride nor honor. He will easily betray behind his leader and pledge loyalty to another whenever it is in his favor.

Fukurokuju is still the second most powerful ninja in the Wano Country. Like most ninjas, this character is a sneaky viper with plenty of tricks up his sleeves. Against the oldest and most experienced Straw Hat, the Soul King, Fukurokuju would easily be beaten when his soul gets moved by Brook’s tunes.

6 Cannot Beat: Queen

Queen in One Piece

The three All-Stars are the most powerful members of the Beast Pirates. Their power equals that of Marine Admirals. This was clearly displayed when Jack the Drought, the weakest of the bunch, attacked four Marine battleships alone.

Queen the Plague is much stronger than Jack. Aside from possessing a powerful Ancient Zoan Devil Fruit, Queen is known for his drugs that poison people. While Brook has already died once, Queen could easily send him to an eternal slumber.

5 Can Beat: Kurozumi Kanjuro

Kanjuro One Piece

Kanjuro is one of Oden’s retainers and a member of the Red Scabbards. The manga showed that Kurozumi Kanjuro was a double agent working for Orochi, bringing drawings to life as his main ability.

RELATED: One Piece: The Nine Red Scabbards Of Kozuki Oden, Ranked

Kanjuro was also hiding extra powers from the other retainers. While he is bad at drawing, Kanjuro is still a capable samurai.

4 Cannot Beat: King “The WildFire”

King the Wildfire in Wano in One Piece.

King the WildFire is the latest All-Star on this list and the most powerful of the three. He ate an Ancient Zoan type Devil Fruit that gives him the ability to turn into a Pteranodon Dragon. In a magnificent display of power, King attacked Big Mom’s ship solo and dropped it off the waterfall. Brook is unable to beat King the WildFire at his current stage because the latter is a true beast. Nevertheless, Brook can hold a fight to buy the Straw Hats some time or serves as a decoy.

3 Can Beat: Killer

Killer Massacre Soldier

Killer the “Massacre Soldier” is Eustass Kid’s right hand and dearest friend. Killer is a fast and agile fighter who uses strange blades to fight his enemies. In order to protect his allies, Killer agreed to eat a defective SMILE Devil Fruit and follow Orochi’s orders.

This has caused him to lose the ability to show negative emotion, stuck with a smiling face. However, eating a bad SMILE did not hinder his power nor his speed. If a battle heats up between Killer and Brook, the Soul King would cool it down with his icy Soul Parade attacks.

2 Cannot Beat: Kozuki Oden

Kozuki Oden

The former Shogun of the Wano Country and the strongest samurai that One Piece ever witnessed is Kozuki Oden. Kaido himself announced that the world had never seen a samurai/swordsman as strong as Kozuki Oden – a samurai who sailed with the two greatest pirates in the world, Whitebeard and Gol D. Roger. Not only would Oden overpower Brook, he also uses two rare swords of the 21 Great Grade Swords. It is enough to declare Oden a winner because of the mark he left on Kaido’s body.

1 Can Beat: Apoo

Scratchman Apoo in One Piece.

Scratchman Apoo is another pirate from Worst Generation, originally from the Longarm Tribe. Apoo is a specialist in sound attacks; he can slash his opponents using sound waves generated from his arm flute. When it comes to sound and slashing, Brook is the one to call. Not only that he can freshen up the mood with his music, but Brook can also alter the sound to his will and use it for attacks. Moreover, the Soul King is a worthy swordsman who is as cool as ice. Therefore, Apoo’s flute would break under the pressure of Brook’s guitar.

NEXT: One Piece: 5 Characters Sanji Can Beat In Wano (& 4 He Can't)