The first question you should have asked is that if that's true will casino and sports bet exist, so since they are existing and very functional is will never be possible for spell to work on them, however I wonder the kind of spell you are even talking about, actually anybody who is thinking about having or acquiring a spell for there gambling will be doing it on there own expense, although I don't no what to call or interpret an experience I encounter from my hometown were a mad woman called a sports name of a club to win and it happen, she has been doing that whenever her spirit leads her to and never for ones has the game go wrong, so I don't no what we should call that but definitely not a spell.