Case's own BOTA tarot deck stands out as a specialized tool for engaging with the tarot's mystical aspects in relation to the Qabalistic Tree of Life. His revisions to traditional tarot imagery were intended to align more closely with the esoteric teachings of BOTA. These cards are designed not just for divination but as focal points for meditation, aiding in the seeker's spiritual growth.
 
This work delves into Case's interpretations of the Tarot in relation to the Hebrew alphabet, as elucidated in the Sepher Yetzirah. Case argues that the Tarot's twenty-two Major Arcana cards correlate with the Hebrew letters, providing a layered structure for deciphering their hidden meanings.