Impious ashes are a 100% drop from Imps, Killerwatts and Pyrefiends.
Impious ashes give 4 Prayer experience when scattered
Impious ashes give 4.8 experience when collected in an inpious urn, or 16 when offered at the Ectofuntus.
Having an Impious urn in a players inventory while killing an NPC that drops this type of ashes, will allow them to be automatically transferred into the urn. Ashes are not able to be placed manually into an urn.
Each Impious ashes fills the urn by 4%. The full urn will grant a player 120 prayer experience.
A heap of ashes from a demon minion.