Sacred Oil

A weapon, ammunition or trap component deals
an additional 2D6 radiant damage against Undead
and Fiends, and is then expended.
Injury coating can be applied to weapons, ammunition, trap components, and other objects
that deal piercing or slashing damage and remains potent until delivered through a wound or washed
off. A creature that takes piercing or slashing
damage from a coated object is exposed to its
effects.