I believe that the Bible is the only valid source of information regarding the practice of our faith. No, all those books can't contain absolutely everything we need to know about everything - but it can, absolutely, instruct us on how to apply anything to the practice of our faith in any and all situations.
Christianity does not change to fit the Christian, Christians must change to be a part of Christianity. You either accept Christ and become transformed, applying his teachings to everything in your life, or you don't. It is that simple.
That's why when we mess up we ask for forgiveness. That's why we don't have to undertake extra weird rituals or adhere to specific timing for things. That's why we're no longer under the rule of law. If you apply the word to the practice of your faith, you will understand that nothing else is necessary.
Tarot cards, Ouija boards, dousing, fortune telling of any sort is therefore unnecessary at best and blasphemous at worst. The unlimited, awesome power of God can not be boiled down into a deck of 78 cards. It can not fit inside of 26 letters and a base-10 numbering system, it is not possible to reduce the creator of the entire multiverse into anything earthly that can be easily understood.
If you know all of this and believe otherwise and call yourself a Christian, you are an apostate, because you have rejected the teachings of Christ and decided that you know better because of your feelings - which we are advised not to listen to, and instead apply the teachings of the word of God.
Thanks.