Realms GuideAtlas of the Infinite
OpenDungeons
Relics

Chapter 10 · Wondrous Item

Spirit Cage

Effect
A palm-sized lattice of silver and void-glass that captures and contains one incorporeal entity. To capture: target must be below half maximum HP and fail WIS Mind save (TN 14). Once caged: fully contained, unable to act or affect the world. Can be opened deliberately to release the entity (resumes at captured HP), or smashed to permanently destroy it.
Uses
Single-use for destruction. Reusable for capture and release.

About

The void-glass is what actually holds them. Caged entities are technically held in the void-layer, which is somewhere genuinely unpleasant.

Carries the resonance of The Open Ethereal