I am in charge of deciding the name of a skill in a role-playing game that serves as a catch-all for abilities/skills that are otherwise unlisted in our handbook (think skills that will help players flesh-out their character's personality, quirks, and life). Such a skill could be a profession type, a craft (e.g.,whittling), or something more exotic like hyperlexia.

• Profession and Craft do not capture the spirit well enough.
• Ability seems too generic, as are its multi-word variants, e.g. Unlisted Ability.
• Knack seems closer to the mark but open to suggestions.