NEW- Oak, Ash & Thorn Tarot Deck Three Trees Tarot the cards are based on the rider-waite-smith system and are meant to be used as an intuitive deck that will grow with you as you develop a personal relationship with the cards. Adam oehlers, the illustrator of this deck has beautifully captured the enchantment of the natural world. In folklore, the site of oak, ash and thorn trees entwined on a hillside mark the dwelling of spirits or the entrance to the other world. These three trees come together with a collection of woodland animals to create a stunning and unique tarot deck.