looks a bit funny but it has become like a spiritual habit and i would appreciate it if someone used a spell before gambling..
but for me actually the spell will not affect the win when playing gambling but the strategy will affect our victory. because when playing gambling, we are actually just looking for luck by installing our money correctly. if someone wins at gambling and they cast a spell before playing, to me it's just luck.
If someone has to make a spell one should do it to have a good focus during the game.
But than again everyone has their own believes and no-one can change them. So better let everyone live the way they want to.