Based on what was mentioned in the Your Story core rule book, I created a WCV house that feeds on rage. I wrote up a little bit of history to use them in my game.
House Malgus - A White Court house, the Malgus family feed on wrath. As such, they tend to be more violent than their lust, despair, or fear brethren in the rest of the Court. Three thousand years ago in Tuscany, Lord Malgus brought the other houses under his control forming the White Court of Vampires. House Malgus ruled the White Court until Lord Raith's coup four centuries ago. Since the coup, House Malgus have not recognized the authority of House Raith and have distanced themselves from the White Court, which has taken on a much more political and behind the scenes approach to their existence. As such, they do not have any representation during Court meetings. They are generally considered outcasts and are not held in high regard with either the other vampire courts or other supernatural powers since they refuse to work within the established power structure.
High Concept: White Court Vampire
Skills: Vary by individual
Powers: Emotional Vampire (-1), Human Guise (-0), Incite Rage (Lasting Emotion; -2), Feeding Dependency (+1, affecting the following powers): Inhuman Strength (-2), Inhuman Toughness (-2), Inhuman Recovery (-2), The Catch (+0, expressions of true peace)
Stress: Physical +2 (for Inhuman Toughness)
Total Refresh: -8