The Road from Salvation
“The devil, borne of the soot and machinery of wickede Industry cannot be harmed by moderne labor. Handworked steel and wood twill harm the creature, though the followers of Jacob Amman have been known to lure the beast into the clear on a stormy eve and God hath graced the pious with lighte from above.”
This creature, although not actually a demon, was a motivating factor for the Amish to shun technology. A monster of smoke and metal, the smithy devil is resistant to technological weapons.