These cards are very useful for players who want to finish their hands fast because they can be used to replace any card in a set or sequence. A signirummy gemsficant advantage over rivals can be gained by players who know when and how to use jokers. For example, using a joker can help finish a sequence in which a player has two consecutive cards but is missing the third, which could result in an early declaration. But it's crucial to use jokers sparingly.