The magic system in "DragonQuest" features distinct Magical Colleges, each with its own group of spells and rituals. Player characters who enter magical study are assumed to have apprenticed with a mage of their particular Magic College, and have learned all the basic spells and a ritual or two from their former Master. Player characters cannot change Magic Colleges in the context of game play, and so are all essentially specialists in a college of magic. Some of the Magic Colleges include: Earth Magic, Air Magic, Fire Magic, Water Magic, Illusions, Ensorcelments, Greater & Lesser Summoning, and Necromantic Conjurations. The revised second edition and third edition (released by TSR) added some colleges and removed others.