As an action, you can create a vial that sheds light equivalent in brightness to a torch when shaken and lasts until the vial is broken. As an action, a creature can throw this vial at a point within 5 meters, where it explodes on impact. Light spreads to fill a sphere twice as big as normal for the duration. The light sheds bright light and sheds dim light beyond the bright light to a distance equal to the sphere’s radius.
If any of this area overlaps with an area of darkness created by a concoction or spell using equal or less catalysts or mana, the darkness is dispelled.