Abishai

An abishai (AB-ish-eye) is one of the least forms of the Baatezu, a race of lawful fiends that seeks to impose cruel tyranny on the face of evil. They are the infantrymen and skirmishers of the Blood War; they are malicious, and compared to the rest of the baatezu race, not terribly clever.

Abishai have five castes: black, green, red, white, and blue. The latter two were added in Monsters of Faerun.