Dream Catcher Necklace
The creature wearing the necklace can activate it, so that for up to 10 minutes (if the wearer can maintain concentration) , the creature wearing the necklace will be protected against certain types of creatures – aberrations, celestials, elementals, fey, fiends, and undead.
The protection grants several benefits. Creatures of those types have disadvantage on attack rolls against the target. The target also can’t be charmed, frightened, or possessed by them. If the target is already charmed, frightened, or possessed by such a creature, the target has advantage on any new saving throw against the relevant effect.