Where to get it

Places		Quantity	Chance
Hall of ArtificeAbandoned Workshop	Independent roll	× 12–99	100%
The Tinker's DesignAbandoned Workshop	Independent roll	× 12–99	100%
Abandoned Workshop	Independent roll	× 20–80	100%
Abandoned Workshop	Independent roll	× 20–80	100%
Abandoned Workshop	Independent roll	× 20–80	100%
The Tinker's DesignAbandoned Workshop	Independent roll	× 20–80	100%
Fortified Maze	Independent roll	× 20–35	100%
Chamber of Bones	Independent roll	× 20–35	100%
Fortified Maze	Independent roll	× 13–24	75%
Supply Depot	Independent roll	× 13–24	75%
Trapped Cellar	Independent roll	× 13–24	75%
Underground Jail Cell	Independent roll	× 13–24	75%
Trial Chamber	Independent roll	× 13–24	75%
Supply DepotTrial Chamber	Independent roll	× 13–24	75%
Protected CryptTrial Chamber	Independent roll	× 13–24	75%
Ram-headed CaveDance of the Maenads	Independent roll	× 40–80	100%
Ram-headed CaveDance of the Maenads	Independent roll	× 28–38	100%
Primordial FuryTectonic Cave	Independent roll	× 12–99	100%
Obsidian PathwayTectonic Cave	Independent roll	× 12–99	100%
Heart of MagmaLost Villa	Independent roll	× 20–80	100%
Tectonic Cave	Independent roll	× 20–80	100%
Old Magma Tube	Independent roll	× 20–80	100%
Pit of FireOld Magma Tube	Independent roll	× 20–80	100%
Thermal Springs	Independent roll	× 20–80	100%