Outside of working together to take down Blackbeard, another way that One Piece's Straw Hats, namely Luffy could take down the menacing figure may involve using the weaknesses of Devil Fruits.

One Piece chapter 1145 was released ... While Rocks' connection with Blackbeard might still stand valid, another connection might tie him with a Straw Hat Pirate. The 'will of the D' was mentioned ...