Stinging Powder

All creatures within a 10-foot-radius Sphere centered on the point of impact must succeed on a Dexterity saving throw (save DC 12) or be covered with this powder. The powder is so itchy and distracting that an affected creature can take either an Action or a Bonus Action on its turns, not both, until it uses an Action to wipe the dust off of it. Specks of this powder seem to dance within their own flask.

Powder: A powder is not consumed or applied, but rather packed in a flask, usually equipped with a fuse. The contents of a powder flask spread upon impact, affecting a small area around it. In order to use them, you must forego one of your attacks and throw the powder up to a range of 20 feet.