Duststorm [Property]

This special ability can be placed only on a melee weapon. Three times per day, the wielder of a duststorm weapon can use it to activate haboob, as the spell. The wielder has immunity to the effect. To cast the spell, the wielder must take a full-round action to swing the weapon about in circles, provoking attacks of opportunity.

Prerequisites: Craft Magic Arms and Armor, freedom of breath, haboob.

Cost to Create: Varies.

Source: Sandstorm, page 131.