Playing cards were used in many games and tricks.
In 1889, Li H'sen Chang performed a magic bullet trick involving playing cards. He threw a deck to the Fourth Doctor, who chose a card — the ace of diamonds — and shuffled them. Chang then aimed a firearm at him and told the audience he would fire a "magic bullet" that would only hit the chosen card. The Doctor brought the deck closer to his face and Chang fired. Taking his card out from the deck, the Doctor found the bullet had put a hole through the single diamond pictured on the ace. (TV: The Talons of Weng-Chiang)
While in Abigail Pettigrew's house, the Eleventh Doctor attempted a trick in which he would guess another's card; he failed many times. The Doctor managed to place one within a Christmas cracker, though this was still not the correct card. (TV: A Christmas Carol)