The Ruins; Tamoguna
The mysterious item which is thought to power the skeleton mekillot, Crawl. It was later found to be an unusual phylactery created by Koschei with some of the items on Koschei’s note. It made Crawl much larger and revived it from the dead.
The party was first told about it as a large green sticky ball, as suggested by the Halfling builder, Erathis.
When destroyed it shrunk into a tiny pill that Crow now uses. It smell delicious & tiny creatures who eat it grow to Large sizes for 24 hours.