I use an app...I pull one card from each virtual deck. I am guided to do this. It is only for the energy of the moment, or day. It works for my purposes.
Everything is synchronized, not just a deck of cards. I think it is easy for the spirit world to affect electronics.
But, whatever works best for you is what is right. I am not big into card reading so it is not so important for me. I use the whole world as a means of divination.
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