When it can appear
- The Cauldron reveals at most 3 new Incantations from this category each night.
- Earlier eligible Incantations in the fixed Cauldron order can delay this one. They do not need to be completed.
When it unlocks
- Requires access to the Pool of Purging.
- Requires at least 3 boons sold at a Pool of Purging.
- Clear the Underworld route at least once.
