So, longswords are the only weapon class with unique weapons like the Bewitched Glaive or Mighty Glaive?
That's disappointing because I wanted to make a reflection build (got armor with reflect gravity) and only photon sabers, javelins and shields have reflection auras. That means that I can only hope for an ether type weapon with potential XV and potential boost XV... But I don't know if they exist, I only had an assault rifle and dual pistols with both potential attributes.
I also tried the Dual Dynamo aura yesterday and the damage for melee weapons is nowhere near as good as Offensive Stance. But it's for ranged weapons, too and you don't suffer from more damage.