Good points made, the funny thing is they ARE a thing in the world of ffxiv, so...it wouldnt be far fetched or impossible, esp as enkidoh saod how it was almost literally the original THM gameplay theme. Not entirely sure if the lore is for the whole of hydaleyn or if this is a close to Eorzea taboo, considering theres the new world, and many other continents on the planet yet to be discovered. For the moment id have to agree with enkidoh that it would seem like its a forbidden art and probably unlikely at least until we go to the seven hells or something