Being based on SWSE, there weren't spell slots as in D&D, but magic was more like a skill you could use fairly flexibly, and there were three orders of magic. White Wizards, basically healers/mystics, who dressed like Shinto priests; Red Wizards, who were basically like the Sith from Star Wars (all bald heads and angry tattoos); and adepts, who were basically anyone and everyone who had a little magical talent and dabbled in it. (Upon further reflection, my brain wants to add a couple more orders, but I'm just reporting the dream at the moment.)
Granted, none of this was particularly ground-breaking stuff, but what struck me about the dream was how vivid it all jumped out at me... obviously the part of my brain that comes up with gaming ideas was like "Aw, c'mon! Let's do something!" To which the rest of my brain replies, "We've been over this. It's a lot of work to pour into something that's going to net you limited returns. Why can't you have that kind of creative energy about one of these other projects?" To which the first part of my brain just turns into a sulky brat.
Being a creative type is frustrating, sometimes. :P