Clayman Ashes

Ashen remains in which spirits yet dwell. Use to summon the spirits of two claymen. Bowed with age, these spirits are sluggish but hard to stagger. The warped remains of priests who searched for revelation in service of the ancient dynasty, they employ two sorceries that produce smaller and larger bubbles.

Located on a corpse in Ainsel RiverDungeon, Lake of Liurnia which is south from the Uhl Palace RuinsLandmark. Easiest way to reach these is ashes is while doing Ranni's questline (the portal you enter from Renna's RiseLandmark will take you near the ashes). After entering Ainsel RiverDungeon proceed south along the tunnel entering into the next main room with enemies, proceed southeast while hugging the left edge until you reach the waterfall, it can be found on a corpse on the right side of the ledge.