>>57785900Mawile is based off a Taisho era girl with a mix of a yokai. The Mega Evolution even has the whole Hakama pants + Kimono(Haikara) combo plus the head being shaped like a bow which was the usual fashion for woman of that period.
Steel typing might be reference to the shift in woman's rights and industrialization in that time period in Japan I guess?
Could also just be Samurai Sword = Steel too.