This template is essentially a quick way to both add a link to Category:Martial Arts (where the skill is described) and also include the article in the category. Further details on the applications of this skill should be included on the Character's page.
An override term can be added if "Martial Arts" is inappropriate for the character. This term can also be used for a specific style of martial arts. If a category for the art exists, that category will be used instead of Category:Martial Arts.