about the mystery card: converted mana cost, color, card type, and the number of words in its name. To do this, they choose and reveal cards one at a time.
When each card is revealed, the Secretkeeper tells the Detective how many of the four facts that card and the mystery card have in common. Then the Detective may either guess the four facts or reveal another card to get more clues.
The Detective gets only one guess, and they must guess all four facts correctly to win. Once the Detective has guessed, the round ends and the players switch roles with a new pack.
TO WIN:
Discover all four facts using as few cards as possible. The Detective who guesses correctly using the fewest clue cards wins! If neither player guessed correctly, or if there is a tie, play another round!