Powers: Protection, Exorcism, Wishes, And Legal Matters.
Magical Uses: Carry or wear it when dealing with legal matters, and as a general good luck generator. Legend states that if you sprinkle buckthorn in a circle and then dance within it under a full Moon, an elf will appear. The dancer must notice the elf and say, "Halt and grant my boon!" before the elf flees. The elf will then grant one wish.