Summary
The Rocks Pirates were an incredibly powerful group of piratesthat terrorized theOne Pieceworld nearly 40 years ago. This pirate crew was absolutely sensational and consisted of some monstrously powerful pirates who, later on, went on to even become Emperors of the Sea.
The Rocks Pirates fought a major battle in God Valley, 38 years ago. This is where this pirate crew ended up splitting. The Rocks Pirates had access to several strong Haku users among their ranks. However, at the same time, they also had powerful Devil Fruit users. These characters were either already users of Devil Fruits when they were members of the Rocks crew or they ended up acquiring one power later down the line.

6Streusen
Devil Fruit: Kuku Kuku no Mi
Streusen was seen as a part of the Rocks crew in the war in God Valley. Fans know that he possesses the powers of the Kuku Kuku no Mi, and this Devil Fruit allows him to turn anything into food.
Of course, the food that he creates doesn’t seem to be all that tasty and this is something that Big Mom has commented upon on various occasions.

5Stussy
Devil Fruit: Unknown Bat-like Devil Fruit
Stussy wasa former member of the Rocks Pirateswho was infatuated with Edward Newgate. She was later cloned by Vegapunk. However, the real Stussy is alive even today. Fans know that Stussy possesses some sort of Devil Fruit, however, the name of this fruit has not been confirmed just yet.
It appears to be a fruit with bat-like powers, potentially being a succubus Devil Fruit. It is certainly a Zoan type of power and fans will likely see more of it down the line.

4Kaido
Devil Fruit: Uo Uo no Mi, Model: Seiryuu
Kaido did not have a Devil Fruit when he wasa member of the Rocks Pirates. However, on the last day of the existence of this pirate crew, Kaido ended up eating his Devil Fruit. This Devil Fruit was provided to him by none other than Linlin, who fans know was like his guardian.
Kaido’s Devil Fruit gave him the ability to transform into an eastern azure dragon, as well as give him control over elements such as fire, lightning, and vent. He also gains incredible toughness with this fruit.

3Shiki
Devil Fruit: Fuwa Fuwa no Mi
Shiki has the powers of the Fuwa Fuwa no Mi, which is a Paramecia type of Devil Fruit that lets him make anything that he touches float. He can make his own body flow as well as any inanimate object. However, he cannot make other living beings float with his powers, which is the only limitation of this Devil Fruit ability.
Regardless of that, this Devil Fruit is so strong that Shiki was able to destroy half of Marineford with iteven when Garp and Sengokuwere defending it together.

2Big Mom
Devil Fruit: Soru Soru no Mi
Big Mom’s Soru Soru no Mi is an exceptional power that allows her to control souls at will. This Devil Fruit power also lets her give souls to inanimate elements such as fire. Using her powerful homies, Big Mom has become an incredibly skilled fighter and she made great use of this devil fruit even after her Rocks days.
By the time of Wano, Big Mom had enhanced her control over this power to a point where she could grant herself a power boost by sacrificing her own soul as well. This is easily one of the scariest Paramecia-type abilities that fans have seen in the entirety ofOne Piece.

1Whitebeard
Devil Fruit: Gura Gura no Mi
Whitebeard was the strongest of the Rocks Pirates, after Captain Rocks himself. It is unknown if he had the powers of the Gura Gura no Mi back when he was a member of this group. Fans will likely not find that out anytime soon, however, regardless of that, he did have an incredible Devil Fruit ability up his sleeve eventually.
Using the powers of the Gura Gura no Mi, Whitebeard could create powerful quakes at will. This power allowed him to sink entire islands by either destroying them or bringing tsunamis. This is one of the most deadly Devil Fruit powers to have ever existed and is the strongest Paramecia ability in the entirety of the series.

One Piece
Cast
One Piece is a Japanese manga written and illustrated by Eiichiro Oda. The series follows protagonist Monkey D. Luffy and his Straw Hat Pirate crew as they explore the Grand Line to find the King of the Pirates' ultimate treasure, the One Piece, in order to become the next king. The manga’s popularity helped it spin off into a larger media franchise, including an anime with more than 1,000 episodes.