Psychic Dissonance

Each of The Outer Planes emanates a psychic dissonance that affects visitors of an incompatible alignment — good creatures on the Lower Planes, evil ones on the Upper Planes — if they spend too much time on the plane. You can reflect this dissonance with this optional rule. At the end of a long rest spent on an incompatible plane, a visitor must make a DC 10 Constitution saving throw. On a failed save, the creature gains one level of exhaustion. Incompatibility between lawful and chaotic alignments doesn’t have the same effect, so Mechanus and Limbo lack this quality.

Primary Related Location

The Outer Planes