Players are wizards battling in an arena. They begin at opposite sides of the arena, which is 20 spaces long. They alternate throwing spells at each other chosen from a vast array, 71 in all. Spells might be visible or invisible, and are represented by cardboard chits, face up or face down. Spells advance toward the opponent each turn, some fighting spells they encounter on the way, others not.The rule book is 39 pages long, 20 of which are a list of spells and effects. There is a good deal of record keeping - since players must track information on all their spells and wizard. - BoardGameGeek