During his mortal life, Kastragar was a Chaos Champion devoted to the Blood God, Khorne. In the year 1715 IC, he led an attack against the Goblins within the labyrinthian warrens of Gnashrak's Lair. After slaughtering every single Goblin in the stronghold with his bare hands, he attracted enough favour from Khorne to bless him as a Daemon Prince.
- 1: Warhammer Armies: Warriors of Chaos (7th Edition) (2008), pg. 40