rare materials such as nagxain silk should not be only able to be found in treasure chest of treasure maps it should be just like every type of else cloth craftable you could make a Mastercraft 7 and 8 and put it in the crafting log the way it should be because not everyone of us the way it should be it is not fair to those who do not wish to run those dungeons when crafting materials you should be able to get from the grand company or Crap them yourself or harvest them