There is no more powerful effect than one that uses some personal information of the spectator that the magician could not possibly know. Here the selected card is found using either the spectator's zodiac sign or the month in which the spectator was born. Self-working. No sleights. Any deck, even a borrowed one.
1st edition 2024, PDF 6 pages.
word count: 1740 which is equivalent to 6 standard pages of text