Black Blood is the richest blood in the vampire realm. This is because it's not the blood of a mere human, but the blood of a vampire! It contains traces of essence of the vampire from which it came, and often is laced with that vampire's memories, skills, and general power. Because of the potency of black blood a normal vampire can only drink vampire blood once a day (Black Blood Exchange), however it is a delicacy for those of the Dark Trinity.
Black blood is collected in the Rising by aligning to the Dark Lord of your choice, then fighting those of opposing alignment, or alternately you can collect it by performing Dark Trinity missions, or through Sparring. Collect enough black blood and you can buy special powers that are otherwise unavailable through normal gameplay.
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