Hmm… I feel mix about it.
I don’t mind it, but feel the holy water concept is too “Christian”?
Could see more like a concoction of like salt, garlic, and even silver dust?
On related topic, could see a series of grenade like throwables too. From like burning oil in small clay pots, to more advanced black powder version (more for shock than kill). Even a poison cloud gas bomb? Assume there are some alchemist hut somewhere.