I was thinking the same thing, I think there is a greater potential for these cards to be used for cheating rather than for magic. Related, is there a way for

I was thinking the same thing, I think there is a greater potential for these cards to be used for cheating rather than for magic. Related, is there a way for casino operators to assure their guests that the cards are not marked? I am thinking something similar in spirit to the transparent dice that show they are not loaded, but cards would require something different.