A willowisp captured in a bottle. When released it emits a phosphorescent glow and can multiply quickly. Unlike most light sources it does not consume fuel or release heat. Max of 10 wisps at a time per thread.
This is an event prize for Naota and Shiloh's 2018 event Night of a Thousand Phantasms.
2 Hematite Magatama
2 Jade Magatama