Btvs The subject of this article is non-canonical.
While created as part of licensed material, it has not been confirmed as part of the "real" Buffyverse.

Azogg-Mon was an Old One that was trapped in a hell dimension. The vampire Lilith performed a ritual called the Dust Waltz in order to free him, but when Azogg-Mon killed Lilith's sister Lamia, Lilith sent him back.