Nightmare Entity

A nightmare Entity is what makes nightmares, they use the fears you have to create terrifying nightmares. It's hard to say where they come from or how they form nightmares, but they are told to be the main culprit behind nightmares. And as some say, Nightmare Entity's roam earth. These creatures are hard to explain due to the few accounts, and how little people have actually heard of them and how rarely they've been seen, but those few accounts say they very and differ in looks, some say they look like tall men with spider legs and others say they are simply tall men without facial features besides glowing eyes and a moth full of perfect teeth, these are the best descriptions of Nightmare Entitys, most others are vague, but historical records claim Nightmare Entity's go back before recoded history.