User blog comment:Yountoryuu/Decken's Death?!/@comment-3242083-20110907201052

Decken won't die, that would be out of Oda's way of storytelling. The few named characters dying were extremely meaningful to the story, on a emotional level.

As to the curse, Decken loosing consciousness does the tick as well, at least if we can compare it to the Fuwa Fuwa no Mi.