Archetype: Killer Fantasy Librarian
I wish this were real. It'd actually make me buy the game. But I'm assuming it's an April Fool's joke.
But you can at least check out what it might be like if there were an archetype for a fantasy librarian character in a video game. He kills... he kills with books.
And you do not want him shushing people at your library... or perhaps you do. It all depends on your attitudes toward customer service!