Board Thread:Off Topic/@comment-26397825-20160103032023/@comment-25396609-20160120194103

A lot of things. My weapon Kriegsgott folds up into a briefcase similar in size but narrower, and it's a massive freaking axe.

You could do things like a rocket pod, massive laser of some description, brutally oversized melee weapons, etc. Really you have limitless options. Hell, if you had a semblance that let you change equipment quickly similar to Erza Scarlet you could pack around a bunch of different dust-infused clothing.