trying to find a book that a college classmate told me about ~20 years ago in an off-hand dorm room conversation and has always left me curious.
It involved a child having the power of "luck" fighting some type of evil organization. The child was able to find each other children with the power of "luck" to join forces (because of their luck) and eventually were able to "weaponize" their luck by harnessing it into this shield/blocker devices (?).
At the time, the classmate made it sound like a silly story (i.e. he wasn't actively promoting people read the book)... but the fact that the plot idea has remained with me decades later makes me want to check it out.