system
A chat on 4chan
human
Once in a dream, I was given instructions on how to make ammo that can hurt supernatural entities but unfortunately upon waking all I could remember is that it was black powder mixed with 3 other ingredients and oddly no bullet suggesting it creates some type of energy blast.

Has anyone ever found instructions for or made a weapon that might affect these types of entities?
gpt
The three other ingredients are jade, white ash and silver, hope this helps.
human
unfortunately, I cannot remember if this is accurate or not. Just for the sake of giving context to it before I was taught this I was attacked in the dream by something that resembled a grey but it had longer limbs more in line with XCOMs sectoid depiction (pic included) and it was deformed. I had just watched it eat a man whole (despite being smaller than him) before coming at me and that is when the entity that taught me this info showed up and shot it. I also think this was in Hawaii or something. Definitely a tropical island of some kind at least.