Stardeck is a five-suited deck of playing cards. The fifth suit is a black and red star, and is called the Suit of Stars. This extra suit brings 13 new cards to the traditional deck of 52 cards, bringing the total to 65 cards.
Interesting new poker hands are available with the addition of the fifth suit, such as five of a kind, rainbow (one cards of each suit), rainbow straight, rainbow full house, rainbow four of a kind, rainbow three of a kind, rainbow two pair, rainbow pair, etc.
The fifth suit also allows for interesting bridge, spades, and hearts variants.