Every king had access to absolute blood control, with each succession it was passed on, and using that power they made it unique to their own.
For Lucien, he was a vampire that had a high interest in martial arts. Mainly his fists.
He tried to perfect techniques that would work well with blood aura, and that would build upon his already found power.
Among the vampire societies, there were currently thirteen families in total.
These families each had a leader that they followed. Vampires that followed a family.
What was special about each of the families was the unique powers each of them would have. Only taught to those within the family.
For Haylock, who was part of the thirteenth family, they had the ability to control string. The talented ones could infuse it with blood, making it stronger and easier to control.
For the fourth family, Jin Talon, their blood was explosive. Allowing them to use it in the most devastating ways.