Until the spell ends, one willing creature you touch is 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
, 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.