Sand cloud

Sand clouds, also referred to as sand storms, are things that Yoshis are able to create as a form of attack in Super Mario World and its reissue. Any colored Yoshi who holds a Yellow Shell or flashing shell in its mouth is able to cause a small earthquake every time the player lands after a jump, which defeats any enemies who are on the ground nearby. After Yellow Yoshis become available in the game's Star World, the player is able to use a Yellow Yoshi to eat any colored Koopa Shell to attack using sand clouds.

The sand cloud ability will last as long as the player keeps the Koopa Shell in the Yoshi's mouth, but the Yoshi will eventually swallow the shell and lose this power.