In a player's Magic phase, which follows the Movement phase, each of his Wizards can attempt to cast each of his spells only once. Spell casting is determined by rolling dice, and the number of dice available to roll limits the number of spells that can be attempted. Fleeing or dead Wizards, or those with any type of armour (except a barded steed), cannot attempt to cast spells. Wizards cannot cast spells at units in close combat, unless the spell only affects themselves or otherwise says so in its description.