The Joker can be a very beneficial card or a bad card to have. In Euchre it is often used to represent the highest trump. In Gin Rummy it is wild. However, in the children's game of Old Maid, a solitary Joker represents the Old Maid, the card to be avoided.
The ace is typically the highest-ranking card in the deck, while the joker is often used as a wild card or in special game variations. Question: Different versions of game hold different perspectives for the same cards.
