A device built around a spren trapped in a gemstone, powered by charges of Stormlight. An Interact action activates one; it spends a charge, produces its effect for the stated duration, then keeps spending until switched off or emptied. Alerters, spanreeds, heatrials, Soulcasters and half-shards are all fabrials.

Summary

A device built around a spren trapped in a gemstone, powered by charges of Stormlight. An Interact action activates one; it spends a charge, produces its effect for the stated duration, then keeps spending until switched off or emptied. Alerters, spanreeds, heatrials, Soulcasters and half-shards are all fabrials.