Dust Cloud
(Savage Species, page 33, DnD 3.0)
[Monster]
You can sweep dust into the air to hide from opponents.
Prerequisite
Combat Reflexes, DEX 19, INT 19, Huge size, wings or tail
Benefit
As an attack action, you can sweep a limb across the ground and create a dust cloud. This hemispherical cloud has a radius in feet equal to 20 Ã your Hit Dice. Creating the cloud has a 50% chance to snuff unprotected flames (candles, torches, small campfires) of nonmagical origin in the area. The cloud obscures vision, and creatures caught within are blinded while inside and for 1 round after emerging. Any creature caught in the cloud must succeed on a Concentration check (DC 10 + 1/2 your Hit Dice + your Str modifier) to cast a spell. The cloud lasts a number of rounds equal to 1 + your Dexterity modifier.
Special
A flying creature with this feat must be within reach of the ground to create the effect, but need not actually be in contact with it.