User blog comment:Staw-Hat Luffy/Blackbeard Theory/@comment-4800978-20130210073505/@comment-4605926-20130216111023

I understand what you're saying Kuro, but words can be rather confusing at times and lead to misunderstandings. Like I previously said, it's possible that they're simply accompanying him on this campaign of his.

It's difficult to believe that stealing devil fruits is something anyone could pull off. That's a bit overpowered. I'm quite sure that this ability derives from Blackbeard's Yami Yami no Mi. In addition, a link to the manga where this was stated will be greatly appreciated.