Acid (vial)

You can use an action to splash the contents of this vial onto a target within 5 feet of you, or throw the vial up to 20 feet where it shatters on impact. In either case, make a ranged weapon attack against the target, treating the acid as an improvised weapon. On a hit, the target takes 2d4 ongoing acid damage. This damage persists for 3 rounds. A creature ends all ongoing damage from mundane acid by using its action to wipe away the corrosive liquid.