Draculorus

Draculorus is a sword that "ate" the Batto Batto no mi, Model: Vampire and was formerly owned by an unnamed noble, and later stolen by Bulvus Ariadne, its current owner.

Powers & Abilities
The sword is able to siphon out blood of whoever it strikes, turning them into dried out husks, the more blood it consumes the stronger the sword becomes, Draculorus is also able to inject blood into the user, enhancing the user's physical attributes.

Devil Fruit
Batto Batto no mi, Model: Vampire