Salt (bag)

Normally used with food. As an action, you can pour out the powder to draw a line across three adjacent squares. Salt repels fiends and undead.

Alternately, you can spend an action to throw a handful at a creature within 5 feet of you. Make a ranged attack against a target creature or object, treating the salt as an improvised weapon. On a hit, if the target is undead or a fiend it takes 2d6 radiant damage.

The bag has sufficient dust for ten uses – ten thrown handfuls, 150-ft. worth of lines, or some combination.