Diablerie (VTR)

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The heinous act of consuming a fellow vampire completely, down to the victim's very soul. The act of diablerie can increase a character's Blood Potency and grant them access to powers and Disciplines known to the victim, but at a terrible cost to the character's Humanity. Diablerie leaves characteristic black veins on the aura of a Kindred observed through the Auspex Discipline. (VTR: Vampire: The Requiem Rulebook, p 158)