 Players first agree upon the number of competing sides, the game's objective (for example, defeat all enemy units, defeat all enemy leaders, or be the first to establish uncontested control of a particular location), and the maximum combined point value of units and spells that each player may field.Play proceeds in turns, during which each player in rotating order activates three of his as-yet-unactivated units (or all of them if he has less than three).An activated unit may cast a valid spell from its player's hidden stack of remaining spells, use one of its special abilities, perform a projectile attack, or move.