The Will skill represents your character’s general level of mental fortitude, the same way that Physique represents your physical fortitude.
You can use Will to pit yourself against obstacles that require mental effort. Puzzles and riddles can fall under this category, as well as any mentally absorbing task, like deciphering a code. Use Will when it’s only a matter of time before you overcome the mental challenge, and Lore if it takes something more than brute mental force to get past it. Many of the obstacles that you go up against with Will might be made part of challenges, to reflect the effort involved.
Contests of Will might reflect particularly challenging games, like chess, or competing in a hard set of exams. In settings where magic or psychic abilities are common, contests of Will are popular occurrences.
Create an Advantage:
You can use Will to place aspects on yourself, representing a state of deep concentration or focus.
Will isn’t really used for attacks. That said, in settings where you allow psychic abilities, full-on psychic conflict might be something you can do with this skill. That’s the sort of thing that would be added to Will by taking a stunt or extra.
Will is the main skill you use to defend against mental attacks from Provoke, representing your control over your reactions.
The Will skill gives you additional mental stress boxes or consequence slots. Average (+1) or Fair (+2) gives you a 3-point stress box. Good (+3) or Great (+4) gives you a 3-point and a 4-point stress box. Superb (+5) and above give you an additional mild consequence slot along with the additional stress boxes. This slot can only be used for mental harm.