Shimmerdust

All creatures within a 15-foot-radius Sphere centered on the point of impact must succeed on a Constitution saving throw (save DC 13) or be Blinded until the end of their next turn. This golden powder bursts into a blinding light once it is released from its 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.