I know prophecies are considered boring and cliche these days, but what about self-fulfilling prophecies? Like, ones that only come true because of the efforts taken to make it not come true? Let's say the bad guys find out that a chosen warrior is destined to stop them. The destined warrior lives all the way on the other side of the world and has no idea the bad guys exist or what they're trying to do, and has absolutely no interest in stopping them--until they show up, kill his family, and drive him to seek revenge. Are those any better?