Although Brook is not considered as powerful as other pirates, rumors claim that he may be the key to Big Mom's defeat in the upcoming chapter 850 of "One Piece."

Avid "One Piece" fans know too well that Brook's abilities pale in comparison with those of Zoro and Sanji. However, the pirate's place in "One Piece" may finally be highlighted in the upcoming chapter 850 of the manga as it is said that he may hold the key to Big Mom's defeat.

According to reports, the Vinsmokes and the Straw Hats pirates will join forces in the upcoming chapter, and it will be Brook who will lead the battle against Big Mom and the rest of the Charlotte clan. As the previous chapters of the manga showed that Brook was able to infiltrate Big Mom's secret treasury, it is said that he must have discovered something vital that he can use against Big Mom.

It is speculated that Brook may have stolen Big Mom's Road Poneglyph when he intruded Big Mom's treasury. On the other hand, there are those who believe that Brook will use his Yomi Yomi No Mi Devil Fruit powers, which may be the only thing that can defeat Big Mom's Soru Soru No Mi Devil Fruit.

Meanwhile, other sources claim that "One Piece" chapter 850 will reveal the real attacker of Reiju. To recall, the current chapter of the manga features Reiju oozing with blood. While the chapter ends without hinting who could have been responsible for the attack on Sanji's sister, some suspect that it was no other than Pudding. Some believe that Pudding might have done it to anger the Vinsmokes so that they will arrive at a decision of cancelling her wedding with Sanji.

Will Brook really launch an attack on Big Mom? What gives him the courage to do so? Did Pudding really hurt Reiju?

Find out when "One Piece" 850 arrives in the coming days.