Two wizards bent on killing each other have the ability take on the forms of a wide variety of different animals, some real, some mythic.Using replaceable spell points the wizards change forms to get an upper hand on each other. There is a cost for transforming and maintaining a form so it is not always best to transform to a large, dangerous animal. Animals are rated for movement, movement type (flying, ground, diving), size, attack, defense, reflexes and special ability. There is a flow chart showing cost of changing from one form to another. The game is played on a hexagonal grid map. - BoardGameGeek