User blog comment:Gundam Legilis/Volume 1 Weapons In Depth - Milo and Akouo/@comment-14061097-20140619031311/@comment-3257939-20140619070409

Yeah, it's like if everyone weapon fits their owners. Weiss has the perfect weapon for her glyphs which is Myrtenaster, Yang is a brawler who pretty much just beats everything up with her fists so Ember Celica is perfect for her fighting style and semblance just like Mercury's is exactly the same with the only difference being: this one is for kick boxing.

Jaune probably will have a semblance which will compensate his lack of speed and increase his defenses.