User blog comment:Staw-Hat Luffy/Blackbeard Theory/@comment-1595565-20130208215638/@comment-3119203-20130209031258

There's got to be a limit to how many fruits Teach can consume. Marine scientists apparently know that eating two fruits will kill a person, so Teach is crazy enough just by eating two fruits, let alone three or four. Also, does anyone find it odd that Blackbeard didn't use his Gura Gura no Mi powers when conquering Whitebeard's territory? This makes me think that there is some sort of limit on the powers the Yami Yami no Mi grants.