Rocks D. Xebec
We still do not know much about Rocks D. Xebec, other than the fact that he wielded a crew that challenged the legendary Roger Pirates in power. It took both the Marine’s and Pirate’s, which Monkey D. Garp and Gol D. Roger teaming up to take down this pirate force. As captain, Xebec was the most powerful, with Whitebeard, Big Mom and Kaido serving beneath him. These were only a few names of that powerful crew and for Xebec to be able to control all of them, he must have been a formidable foe.