Owain Glyndŵr’s Cresset

Origin
Owain Glyndŵr was a Welsh ruler and last native Welshman to have the title Prince of Wales. He instigated a fierce and long-running but ultimately unsuccessful revolt against the English rule of Wales. The Welsh Revolt against Henry VI began successfully, taking over large areas of Wales. However, the revolt suffered from a lack of artillery and ships, making it difficult to defend captured forts and the coastlines. The English later defeated the rebellion with superior forces, although Glyndŵr escaped and was never captured, even with the offer of large rewards.

Effects
Can let any person disappear, but only after a defeat. That person is not able to hide from everybody, but only their adversaries/enemies, specifically the one(s) that defeated them. Anyone weapons or supplies a person brings along with them will disappear, meaning they have to find provisions as they go.