The "Dead Man's Hand" is, in the card game of poker, a hand made up of two black aces and two black eights. "Wild Bill Hickok and the Dead Man's Hand" was one of the tricks Tobin Dax tried to teach himself from the book 99 Great Card Tricks You Can Learn in Your Spare Time, and one he used to distract one of the Romulan guards as he attempted to save the crew of the warp ship Heisenberg. (DS9 - The Lives of Dax short story: "Dead Man's Hand")