Cerberus

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This article or section contains lore taken from the Warcraft RPG books.

Cerberus herds the spirits of those killed and promised to the Burning Legion across the void of the universe. The three-headed hound is unlikely to be encountered on Azeroth, unless he is pursuing an escaped soul of particular value to the Legion.^{MoM 199}

Source

See Manual of Monsters; Appendix 3 notes.