As soon as the vampire's body fell at his feet, Vicente used what little mana he had left to store the corpse in his spatial ring.
Vampires weren't just terrible when they were alive. Their bodies were precious. That was particularly true for the bodies of noble vampires, i.e. those born into the race.
That seemed to be the case with Vicente's enemy creature!
How could a vampire's body be used? Well, there were several uses for it.