Sekiro: Shadows Die Twice Wiki
A lump of fatty wax that has formed inside the body and turned pitch black.

Used for occultic Prosthetic Tool upgrades of and advanced nature.
A long-suffered illness will see the growth turn large and blacker still. It is customary to run water over the site of an extracted growth.

Lump of Grave Wax.png

Material used for Prosthetic Tool upgrades:

Ashina Castle
  • (First Invasion) Near the Chained Ogre.

Sunken Valley
Ashina Depths
Fountainhead Palace
  • On a broken bridge leading towards the Great Lake.
  • In Mibu Manor, on an altar.
  • On a rooftop sticking out of the water of the lake.