The spinagon (baatezu) and the narzugon (baatezu) appear in this edition's "Manual of the Planes" (2001). The kocrachon (baatezu) and the ghargatula (baatezu), as well as the archdevils Bel, Lord of the First; Dispater, Lord of the Second; Mammon, Lord of the Third; Belial/Fierna, Lord of the Fourth; Levistus, Lord of the Fifth; The Hag Countess, Lord of the Sixth (not technically a devil, but a powerful night hag); Baalzebul, Lord of the Seventh; Mephistopheles, Lord of the Eighth; and Asmodeus, Lord of the Ninth appear in the "Book of Vile Darkness" (2002). The advespa (baatezu), the amnizu (baatezu), and the malebranche (baatezu) appear in this edition's "Monster Manual II" (2002). The paeliryon (baatezu) and xerfilstyx (baatezu), as well as the bloodbag imp, the euphoric imp, and the filth imp appear in this edition's "Fiend Folio" (2003).