How to Play Joker's Wild Poker - The Rules:

Joker's Wild follows the same rules as five card draw poker with the addition of one joker being added into the game. This means you are playing with a 53 card deck instead of a 52 card deck. The joker is played as a wild card, and can be played as any card you want.

The existence of a wild card increases your chances of creating a winning hand, so the payout schedule for the game is adjusted accordingly. To win in Joker's Wild Poker, you need at least a two pair or better to get paid.