Human weapons really changed quickly. Energy weapons had already surpassed silver knives and bullets as the most feared weapons by vampires. To a vampire with a later generation number, being stabbed in the heart by a silver knife or an energy blade would both result in the same thing: being rendered to dust and smoke.
But to a vampire with a lower generation number, dealing with silver knives is but a simple matter–-the heat of energy blades were what is truly hard to deal with. If a limb had been chopped off by an energy blade, the site of injury would be burned, and regenerating the limb would be much more difficult.
After activating the energy blade, the hero-in-training became more brave. He yelled harshly, "I saw your fangs; you are a vampire! Do you think I'll believe what you say?"
"So you plan on attacking. I feel regretful, very regretful."
Normally, I would not fight and only leave; I was confident that he could not catch up to me. But, Mr. Burt and his associates had already used up all of my patience. And I had already given this hero-in-training his last chance.
Although I mostly drank from a pouch of blood and only very rarely use my fangs to eat, I would not mind using them this once.