You revel in madness, embracing your hallucinations, erratic behavior, and deviant cravings. Your mind cannot be touched by outside influences. This revelry causes a permanent reduction of your Wisdom score by 4.

You have advantage on Wisdom saving throws against all mind-affecting spells and abilities.

As a reaction, you can derive clarity from your madness to add a bonus equal to one-half your character level to a single Wisdom saving throw. You must make the decision to use this ability before determining the results of the saving throw.