[Akiyoshi]

Not exactly, while it's true she uses magic to perform her perfume-based attacks it's also revealed that both her armour and device use alternate energy source(on this case some sort of "combustible battery") in order to be able to work even during instances of magic cancellation, the text is ambiguous but lampshades the fact that Isis is pretty strong on her own and that her Armor Jacket only aplifies her already impressive physique.