system
Given the following post, respond as if you're commenting on Reddit:
human
[Vampires] Is actual Holy Water needed in realities where it affects vampires or is simply the belief that one is wielding Holy Water sufficient for it to work? Could I hand someone a flask of un-sanctified water and tell them that it was and have it work just as effectively on their faith alone?
gpt
That seriously depends on the universe in question. In universes where only faith matters, then the belief that it is holy will make it holy. In universes where actual artefacts hold the power, then faith may not be enough and it would require an actual blessing.