Dust of Desiccation

Wondrous item, rare

This small packet contains soot-like dust. There is enough of it for one use. When you use an action to blow the choking dust from your palm, all creatures in a 30-foot cone must make a DC 14 Dexterity saving throw, taking 16 (3d10) necrotic damage on a failed save or half as much damage on a successful one. A creature that fails this save can’t speak until the end of its next turn. Alternatively, you can use an action to throw the dust into the air, affecting yourself and all creatures within 30 feet of you with the dust.