Target of Quests: Two-horned Hostility, RRRRRumble in the Waste!, Special Arena: HR Black Diablos, In The Heat of the Moment.The color signals their aggressiveness and heightened hostility to other creatures in their habitat Black Diablos Details & Locations
These black-shelled Diablos are actually female Diablos in heat. Black Diablos is a Large Monster in Monster Hunter World (MHW). ディアブロス亜種 (Diaburosu Ashu) in Japanese.