A vampire's gift also adds to their need for blood. A focus vampire needs the least amount of blood. A psychic vampire needs an increased volume of blood. An alteration vampire requires the most blood. Each type needs more blood as they use their gift more.
A vampeal varies in their needs. If they want to have increased power and strength, they need one gallon of blood a day. Two gallons if they want to remain the same age. If they choose to abstain, they require nearly nothing. A pint a week sustains them, or a few rare steaks.
A demon vampire needs two pints of blood a day, always. The more blood, the quicker their power grows. Once they reach 300,000 bodies' worth of blood, their higher gift becomes available. Allowing them to enact massive damage on the population.
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