From then henceforth, the children of the witches were no longer called Mutts but Badbloods, the name given to them by the vampires for the terror they created.
Thus Badbloods became the bane of vampire's existence and the witches who once degraded them now held them in high esteem because of their usefulness. It was said that a single bad blood could end the lives of up to fifty vampires depending on their ability to resist the blood.
BadBloods have an attractively sweet blood that entrances a vampire once they catch a whiff of it. Some of the converted humans had described the feeling as being high on drugs. You couldn't resist it and would want more without knowing it's killing you from the inside out until you're dead.