Ustalav By Night
Cold Iron Encased Vial
Open the bottle within the area affected by a Haunt, and it will do 3d6 points of positive energy damage to the haunt. If it deals enough damage to the haunt to reduce it to 0 hit points, the mist in the vial glows green. It can then be used as a grenadelike splash weapon that deals 1d6 negative energy damage with a direct hit and 1 point to all creatures within five feet.