Bottled Lightning

Alchemy [Alkahest] - Apprentice
Time: PT17H
Value: 50 gp

Tools: alchemist's supplies
Ability Check: DC 10 Intelligence check
Properties: fluid, volatile
Description: As an action, a creature can uncork this vial and release a stroke of lightning forming a line 15 feet long and 5 feet wide in the direction they choose. Each creature in the line must make a DC 10 Dexterity saving throw. A creature takes 1d6 lightning damage on a failed save, or half as much damage on a successful one. The lightning ignites flammable objects in the area that aren't being worn or carried.