Butcher demons can be found in the Heart of Gielinor. They can be fought for kill count for the Zamorak faction. Butcher demons can be summoned by the player when they have obtained 250 reputation with the Zamorak faction (required to summon them), in addition to 250 Ingression fragments. When summoned, the player will gain 15 reputation with the Zamorak faction, and the demon will proceed to attack nearby enemies and capture/defend nodes. Equipping a Zamorak insignia makes them non aggressive.