They do not count towards points. Also, it does not have a suit, and can be played at any time. Bidding commences with the person to the left of the dealer and proceeds clockwise. Each player may bid higher than any player before her, or pass. Suits are ordered alphabetically by the first letter of their name, so clubs are lowest, diamonds next, then hearts, and spades are the highest.
Bidding continues until no one wishes to increase the bid.
The trump suit for that hand is determined by the winning bid. The magic card has higher precedence than any other card in the deck, and the player who has the magic card in her hand is the partner of the player who won the bid. You can call a Magic Card that you have in your own hand. During each trick, the highest card of the suit led wins, unless a trump card or the magic card has been played. If a trump card is played, it is the highest trump card played that wins, unless the magic card is played.