This fine powder sparkles like ground gems.

You can fling this powder into the air up to 10 feet away from yourself to create a translucent cloud that occupies a 10-foot cube. Creatures outside the cloud can see into it and through it (though their sight is slightly blurred), but any ranged attack entering or passing through the cloud has a 50% miss chance. Creatures within the cloud make ranged attacks normally.
The cloud persists for 3 minutes, but a moderate wind (11+ mph) disperses it in 4 rounds. A strong wind (21+ mph) disperses the cloud in 1 round, and any spell that deals fire damage burns away any part of the cloud in its area. Dust of dispersion cannot be used underwater.
Once activated, this dust is expended and cannot be used again.

Prerequisites: Craft Wondrous Item, blur, glitterdust.
Cost to Create: 250 gp, 20 XP, 1 day.