Baatezu

A devil, also referred to as a baatezu, is a member of a group of fictional creatures in the Dungeons & Dragons (D&D) roleplaying game typically presented as formidable opponents for advanced players. Devils are characterized by their Lawful Evil alignment and are depicted as originating from the Nine Hells of Baator. They follow a strict and hierarchical structure, progressing through various forms as they rise in rank. At the top of this hierarchy are the Archdevils, also known as the Lords of the Nine, who govern different regions within Baator. Devils are often portrayed as seeing the various worlds in the D&D universe as tools to be exploited for their objectives, such as participating in the Blood War—a centuries-long conflict against demons.