Brightshore

As a reaction when you take damage, are grappled, or are restrained: You may shed this cloak and impose it between yourself and harm. Any damage from the trigger is reduced to 0 and any grappled or restrained condition immediately ends. You may immediately move up to your full movement speed without provoking attacks of opportunity.

The mantle drops to the ground in the space that this ability was used. If the item is recovered, this ability cannot be used again until you complete a short or long rest.