Needs review
Source: Sandstorm

Description: You spray sand with your acrobatic maneuvers.

Prerequisites: WIS 13, Sand Dancer, Tumble (8 ranks)

In any round when you first move at least 10 feet using your Tumble skill in an area covered in a layer of at least 1 inch of ash, dust, loose earth, or sand, you can take a standard action to hurl a spray of sand into the eyes of all creatures in a 5-foot-radius burst. Those within the area must make Fortitude saving throws (DC 10 + 1/2 your character level + your Wis modifier) or be blinded for 1 round.