Game play idea.
The sim is just studying to be a regular stage magician. There's an outfit an CAS and a wand in Build/Buy that fit well with that look. And I think there's also a top hat from another expansion that would help cement the look.
And to explain "why" they entered the Magic Realm to become a Spellcaster, if not creating a Spellcaster in CAS, use that good ol' chestnut that they thought it was a dream but that dream is the reason they're inspired to become a stage magician. Also could mention that the sim really doesn't understand or hates why after taking up magic others who also practice like to call each other Spellcasters when their fine just being called a Magician.
And if they need any supplies by tomorrow there should be quite a few magic shops available for downloaded for your practicing magician to pick up what they need so they don't have to revisit the Magic Realm.
