the use of tarot cards, and every superstitious practice or belief, is forbidden by the church,
the problem is, no matter what religion you follow or how much you seek Gods guidance, God is not going to give you any power or help whatsoever in the way of superstition or in something that He has forbidden, it would be bad for your soul, and it would be in direct disobedience to the church,
we must be obedient to the church even in things we do not fully understand, because the Holy Ghost guides the church, and we must trust that God knows what He’s doing, and if we decide on our own that it’s ok to do something that the church forbade, then we are basically saying we know better than the church or God, which is the sin of pride, and it is a mortal sin if we think we know better than God.
but the truth of it is, all those “powers” or whatever that people think they have, could very well be from the devil, or at least manipulated by the devil, so they can never be trusted, it’s just not worth it,
and what purpose would it serve to know something of your future on earth? the only future we should be concerned about is after this life, and no fortune telling or tarot cards are going to help you with that, quite the contrary, they will hurt your chances of getting to heaven, so it’s just not worth it.
well, to put it simply, the church teaches that we must trust in God alone, so tarot cards are a sin against the 1st commandment *“I am the Lord thy God; thou shalt not have strange gods before Me.” *
no matter how you look at it, trusting in any superstition is disobeying God and not trusting in Him.
ok, hope this helps, take care.