If They Need Class Inspiration...

[Soge01]

There some characters even in FFXIV they can base new jobs on. Raubahn, back when he had two arms and his ability to generate flames from his swords and Meryweb and her dual pistols.

Have Raubahn's fighting style be something he learned back in Ala Mhigo as a traditional fighting style of his people back when they were mostly mercenaries and cut throats for hire and he decides to pass this fighring style onto us.

And Meryweb's style is something she picked up from her father, since he was the original owner of both her guns. And so we could directly learn from her and she eventually gives us a replica of her own pistols after we master her fighting style.