Magic

''Magic is an expression of a world’s nature. Or perhaps it is a facet of the cosmos itself, incarnated in a particular wielder. Or it could be that it is all trickery and illusion, crafted to mislead the unwary. Whatever the case, all of the magics are potent forces in their particular world, and no less so here in the Forest of Doors.''

Spell Schools
To learn, all schools of magic require a teacher or a Brilliant mind to witness a caster.

Dead Magic Schools
"Dead" Schools of Magic are considered unteachable. While their power is certainly unchanged, something has occurred to cut off life from the source, rendering the Magic unable to be passed on.

Greater Workings
Most Greater workings are learned through research or by a Teacher.