User blog comment:Ragadorus/The Secret Weapon/@comment-24.22.211.49-20131026055957

Actually, if anybody in the main cast would have an unrecognized weapon, I'd bet on Jaune.

Of all the transforming equipment we've seen, Jaune's shielth seems like the most impractical. My assumption is that there's another mode on it, probably a ranged weapon. Jaune doesn't know about this for the same reason he didn't know about Aura; he never studied.