Dust of Dryness is a uncommon wondrous items in D&D 5e. It does not require attunement.
Wondrous item, uncommon
This small packet contains 1d6 + 4 pinches of dust. You can use an action to sprinkle a pinch of it over water. The dust turns a cube of water 15 feet on a side into one marble-sized pellet, which floats or rests near where the dust was sprinkled. The pellet's weight is negligible.
Someone can use an action to smash the pellet against a hard surface, causing the pellet to shatter and release the water the dust absorbed. Doing so ends that pellet's magic.
An elemental composed mostly of water that is exposed to a pinch of the dust must make a DC 13 Constitution saving throw, taking 10d6 necrotic damage on a failed save, or half as much damage on a successful one.
Frequently Asked Questions
This small packet contains 1d6 + 4 pinches of dust.
The Dust of Dryness is a Uncommon magic item in D&D 5th Edition.
The Dust of Dryness is a Wondrous Items — Wondrous item, uncommon.
No, the Dust of Dryness does not require attunement and can be used immediately when held or worn.