Effects: A blade coated with this substance causes crippling pain to a wounded creature; creatures which do not feel pain are immune to its effects.

Preparation: The oil is made by mixing ingredients providing one measure each of vitriol, aether and hydragenum, and two measures of vermilion; top-quality grease must be used as a base.

Duration: Long

The formula for this substance comes from the city of Crinfrid, where it is widely employed by dark characters of all kinds.