User blog comment:PitchBlack696/Monster Hunter Portable 3rd/@comment-86.18.80.90-20101215165514/@comment-68.145.187.205-20101215225332

I don't know because I don't yet own the game, but since that sword looks metalic, and all other barioth weapons come from a metal weapon, I would assume you have to start with a iron great sword or somthing, but again, I'm not certain of it.