The Hellfire Arrow is a type of ammunition found in Chests and Pots in The Underworld. When shot, it creates a particle effect that illuminates the area. It creates a small explosion upon impact similar to that of a Grenade. Hellfire Arrows cannot be regathered after being shot, probably because of the explosion destroying the arrow. They can be bought from the Demolitionist after enabling Hard Mode (defeating the Wall of Flesh). File:Terraria Hellfire Arrows (Updated)