[Can't swim, and yet Ban will soon learn he's a captain of a pirate ship.
That's like telling someone that you're a professional Lava Pole-Vaulter.]

Nope. Devil Fruit eaters sink like rocks. [His hands come up, and no--he really doesn't care.]

Nah, you wouldn't be able to. There's only one fruit for every power. They're really rare, yanno? [He's the only rubber man in the whole world.] There's lots'a different kinds'a ones though.
My brother can turn into fire!