User blog comment:AYET/Mihawk - to the NW and back.../@comment-31.46.160.89-20120220085422/@comment-3425840-20120221114433

WHo knows, he used the Kogatana to eat, and from the colour of the sword I think he does use it as an oar and there for it got moss into it making its colour black and it also explains the green slashes he makes! (I am just kidding now).