Negates healing with a dagger

“For vampires, any wound save a blow to the heart or decapitation would heal almost instantly. However, the foe Gildea faced now was something that surpassed all imagining. He had an ominous feeling the agony that should’ve vanished in a second would continue forever, and the dagger that should’ve come out of him naturally due to internal pressure wouldn’t budge at all, as if it were stuck in stone. Grabbing hold of it, the baron applied additional power. Hellish pain ravaged his brain cells, and he passed out.”

“Vampire Hunter D Volume 25: Undead Island.”