User blog comment:Kogath/Monster Hunter X Discussion/@comment-25275196-20150925103533

I was looking at the hunter arts page, and noticed that all of the arts unique to weapons have the letter "I" next to them. This got me thinking, there could be a new mechanic in the smithy where we can choose to upgrade the weapon itself or the art attached to it. Not unlike the mods you can do to bowguns. This is just a theory, but what else could a roman numeral mean if it doesn't signify levels?