Keter Biosynthetic Drive

The Keter Biosynthetic Drive, commonly abbreviated as KBD and pronounced 'kavod', is a kind of bio-mechanical engine and power source (some would say 'artificial organ') unique to the setting of Seraphim Grave.

Due to the alien nature of its power-generation process, it is exclusively made from cultured and engineered Angel Dust.

KBDs are the common power source of the humanoid aircraft called MALACs.