Windy is the first card that Sakura ever got from the series. It was the card she started out with when she accidentily used the card to blow the rest of the cards all over town. Windy is one of the four elemental cards that Kero needs to become his former self, Keroberos.

Upon summoning, Windy uses wind magic to either aid Sakura when she needs it or she binds weaker cards so Sakura can seal them. She tried windy out the first time when she confronted the Fly Card. From then on, she used Windy more and more to help her capture the rest of the cards.