[quote=@Lucius Cypher]
It doesn't have to be human, but it does have to be mortal. Elves, Dwarves, Eyesires, Naga even. But not Cosh, as I'd assume they're some sort of animal. Basically, if it can't be a vampire (Or already is a vampire), a vampire can't feed from it.
[/quote]

Naga can't become Vampires though, but I assume they can still provide some substance due their heritage origins. Yes, which is why I had to ask. I swore you mentioned animals were able to be devoured by vampires but maybe that was another conversation completely. I thought I might've gotten an idea for solving Keri's issue and possibly killing off some enemies in the same stroke, but meh.