At the Beginning, He Sent His General Whitebeard.

Hall travels through the world of One Piece and obtains the system of restraining spirits and dispatching generals. Looking at Whitebeard's Tomb in front of him, Hall knew that he was invincible. Blackbeard: "What's going on? Isn't the devil fruit unique? How come you can shake the fruit too." Whitebeard II: "I am of Whitebeard's bloodline. Why is your power more like Whitebeard's?" Akainu: "Damn it, the old 'World's Strongest Man' died and a new 'World's Strongest Man' came." Marco: "He has completely inherited his father's will." … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.