Werewolf is a Special Good trait costing 5 character points. Those touched by the moon surrender to their bestial nature when bathed in its light. The nature of Werewolves might vary from creature to creature, but Mags is reasonably typical, if a little sensitive. The Doctor will encounter another type of Werewolf later on when his travels take him to Scotland (see Tooth and Claw in The Tenth Doctor Sourcebook).
When they see the moon (or, in Mag’s case, are simply hit with silver blue light) a werewolf will transform into a frightening creature. They grow claws and fangs and lose control of themselves, seeking only to kill anything in their path.
In Werewolf form the creature gains the following traits until the moon has gone: