The probability of you pulling that card is a 1/52 chance. Every card is either black or red, can be an ace,2,3,4,5,6,7,8,9,10,jack,queen,king, and it can be a spade, heart, diamond, or club. So, you have narrowed it down to just one card out of the 52 cards in the deck, therefore it is a 1/52 chance at getting that card.