My take:
Personally, I imagine that the vampire body treats the transubstantiated wine/blood as blood: i.e., it goes into the vampire's veins rather than making the vampire want to puke like drinking regular wine. (Vampires aren't nourished by the physical properties of blood, like vampire bats and such. It's the magical essence of blood that nourishes them, and transubstantiation alters the magical essential nature of the wine, even if it stays physically the same. ("Substance" vs. "accidents" sorta doctrine.)) Not only does Christ's blood does slake a vampire's thirst, but it's really tasty — addictively so.
However, while Christ's blood doesn't immediately destroy a vampire like holy water, it's detrimental in the long term. Vampires addicted to and regularly consuming sacramental wine find their vampire powers diminishing — their strength gets less and less superhuman, their ability to fly becomes more awkward, and they ultimately become landbound, their ability to shrug off attacks besides stake-through-heart is diminished, etc. Their weaknesses are also diminished to some extent — the sun isn't quite so instantly deadly, garlic isn't so repulsive, etc. Ultimately, Christ's blood "kills" the vampire: one morning, they go to sleep, and the next evening, they do not wake up. However, while deadly to the physical form of a vampire, vampires who die from drinking Christ's blood have a higher chance of spiritual salvation than most vampires who die of stakes, the sun, etc.
PARTY PARTY PARTY I WANNA HAVE A PARTY
It really doesn't matter, because the rules of your vampires aren't the rules of other vampires. Our Vampires Are Different, after all.
I've got new mythological machinery, and very handsome supernatural scenery. Goodfae: a mafia web serial
This is a title.
But Vampires don't drink...wine. ;)
edited 13th Apr '14 4:04:26 PM by Eagal
You fell victim to one of the classic blunders!
Depends on what Vampires are. If in your universe Christ and God exist as presented in the Bible (else how does transubstantiation work?) then Vampires are also probably evil in nature, in which case Christ's blood will probably resurrect them as normal humans, assuming of course that their human side still wants to be redeemed.
KVLFON
Two ideas:
1) your setting has roughly the same rules as in Bram Stoker's Dracula, where the Host (the transubstantiated bread) was used to repel and harm vampires. I'd wager wine would do the same.
2) your vampires are not Stoker's vampires and/or what's going on during Catholic Mass is not the Catholic Church dogma. In this case, do whatever you want.
"Atheism is the religion whose followers are easiest to troll"
Wouldn't the vampire get sick?
You know. On account of the cross contamination.
Fire, air, water, earth...legend has it that when these four elements are gathered, they will form the fifth element...boron.
I'd say they simultaneously burst into flames and turn human.
Feminist in the streets, sex slave in the sheets
Either they'd instantly die from the holy energy filling them. Similar to how holy water kills them.
Or they'd turn human and Eucharistic wine turns out to be the cure for vampirism.
I'm pretty much plagiarizing something I wrote on Reddit
, but what do you think happens if a vampire drinks wine that has been transubstantiated into Christ's blood?
Assume, for the purposes of this thread, that both vampires and transubstantiation are real in this fantasy world. (No comment on whether either are real in the real world.)