The Blood Clan is immortal.
Indeed, they are.
No matter the severity of the wound, the Blood Clan can rapidly heal themselves.
Whether their hearts or brains are pierced, it will not lead to their demise; the sun cannot harm the noble Blood Clan, who hide in the darkness only because they dislike the sunlight.
Garlic can repel the Blood Clan, but only a few who detest the smell of garlic are affected.
Silver cannot hurt the Blood Clan; it might even become part of their collection.
The Blood Clan does not have any natural enemies. If there is anything in the world that could truly bring an end to the Blood Clan, it would likely only be fire, for after turning to ash, even the mightiest of bodies is rendered powerless.
But the Blood Clan on site witnessed with their own eyes one of their kind being pummeled by a nearly tangible force of wind, his body violently shaking, convulsing, exploding into a mist of blood.