A Wild Draw Four Card is a card found in the standard Uno deck. When this card is played, the player who played it selects the color that continues play, and the following player must draw four cards (unless the card has been played illegally and a successful challenge takes place).
Trivia
- For obvious reasons, this card is commonly seen as the most "powerful" card in the standard Uno deck.
- For some players, a Uno reverse can be played on top of this wild 4 card in order to "reflect" back the effect. This also happens to the +2 card but it must be a specific color.