Syntax: +roll <skill> [<bonus> for <reason>]
Example: +roll Will +2 for Indomitable
<bonus> is always a single + or – entry such as ‘+4’ or ‘-2’. If you are stacking multiple bonuses, you’ll need to add them before entering this value.
<reason> should be the name(s) of the Aspect, Stunt or Extra that is the reason for the modifier.