Strongest Rookies of Previous Generation Ranked by Their Strength

10 – DONQUIXOTE DOFLAMINGO

Donquixote Doflamingo is the captain of the Donquixote Pirates, a former Shichibukai, the most influential underworld broker under the codename “Joker”, and is a former World Noble of the Donquixote Family descent. He is 41 years old.
Doflamingo ate the Ito Ito no Mi, a Paramecia-type Devil Fruit which grants him the ability to create and manipulate strings. He usually moves his fingers accordingly to bend them as he pleases for either manipulating people like puppets or bifurcating his targets. The strings are extremely thin and some may even be invisible, making it almost impossible to notice and avoid them.
Using his “Parasite” move, Doflamingo can force comrades to fight (and even kill) each other, while he himself sits at the sidelines and watches.
The strings can also be used for cutting, allowing Doflamingo to effortlessly slice off body parts and destroy weapons.
Doflamingo’s mastery of his Devil Fruit is so advanced that he was able to awaken his powers, being able to even turn his surroundings into string.
Doflamingo is one of the very small number of people in the world who can use all three types of Haki.

9 – CHARLOTTE KATAKURI

Charlotte Katakuri is the strongest of Big Mom’s Three Sweet Commanders. Even as a child, his strength was compared to that of a “monster”. He currently is 48 years old.
Katakuri is extremely fast and possesses tremendous physical strength.
Katakuri is one of the very small number of people in the world who can use all three types of Haki. He’s able to use an advanced form of Kenbunshoku Haki which allows him to see slightly ahead into the future.
Katakuri ate the Mochi Mochi no Mi, a special Paramecia-type Devil Fruit that lets him create, control, and transform into mochi at will.
As a “special” Paramecia, Katakuri can actually change his body into mochi, akin to a Logia. When combined with mastery over Kenbunshoku Haki, he can predict the future and manipulate the shape of their bodies accordingly to avoid being hit by attacks.
Katakuri has also awakened his Devil Fruit powers, enabling him to transform inorganic material into mochi, enhancing the range of his attacks and capture field.

8 – VISTA

Vista is 47 years old. He has tremendous physical strength as he is able to match against Dracule Mihawk, who is known as the strongest swordsman in the world. He was capable of deflecting an attack from an axe-wielding giant, as well as easily slice down cannonballs in midair.
Vista has extraordinary mastery in dual wielding swordsmanship and even Mihawk acknowledges his skills. He even managed to deflect Mihawk’s flying slash attack which is powerful enough to cut through battleships.

7 – JOZU

Jozu is 42 years old. He has demonstrated one of the greatest feats of strength seen in the series, though it is currently unknown how losing his right arm will affect his strength.
Despite his massive body, his speed and reflexes are on par with his brute force. This speed, combined with his Haki, makes Jozu particularly dangerous against Logia users.
Jozu ate the Kira Kira no Mi, a Paramecia-type Devil Fruit that allows him to transform parts and most likely all of his body, into diamond.
Jozu’s powers give him the ability to greatly increase his offensive and defensive capabilities, as his already strong physical attacks are enhanced by the density of his diamond body. His defenses seem to enhance exponentially, as he is able to block the strongest slash in the world from the world’s greatest swordsman, Shichibukai Dracule Mihawk, with no visible damage to himself, as diamond is one of the hardest substances in the world, along with Seastone and the Poneglyphs.

6 – LUCKY ROO

Lucky Roo is one of Yonko Shanks’ most important men. He’s the first person to kill someone both in the anime and the manga, by shooting a mountain bandit in the head at point blank range. He currently is 35 years old.
During Romance Dawn, we see one of Higuma’s men pointing a gun at Shanks’ head, then after Shanks warns him suddenly Lucky Roo appears and shoots him. Now here’s the question, how can a big man like that go there that quickly without being noticed? It is likely that he is based on Lucky Luke (a fictional cowboy -gunfighter- from the “Lucky Luke” Franco-Belgian comic book) that is known as “The man who shoots faster than his shadow”.
Lucky Roo he’s supposed to be a Haki master or, anyway, a master in something different; in particular, many speculated that he uses a technique called “Life Return”. In this case, Lucky Roo eats so much because he is storing energy for a battle. Life Return gives him the ability to control his body; this can be used to turn fat into muscle, or just turn fat into energy.

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