Haunted Aegis

Bonus Action: Once per day, activate the shield to Disengage and shroud yourself in ghostly fog until the end of the turn. While shrouded, you can move through difficult terrain, objects and barriers, and other creatures as if they were not there. If you are inside of an object, structure, or share a space with another creature at the end of your turn, you return to your original position before the shroud dissipates.