Blood Leech
You drink from other vampires, either by hunting, coercion or by taking Blood as payment – the only truly moral way of feeding you can think of. Unfortunately, this practice is usually forbidden in Kindred society. It is either risky as all fuck or requires a position of enviable power.
Add a specialty: Brawl (Kindred) or Stealth (against Kindred)
Gain one dot of Celerity or Protean
Lose one dot of Humanity
Increase Blood Potency by one
Gain the Dark Secret Flaw: (••) Diablerist, or the Shunned Flaw: (••)
Gain the Feeding Flaw: (••) Prey Exclusion (mortals)