Curse of the Midnight Wind

[s] d=2 Curse of the Midnight Wind is a hex with a range of 24". The target must re-roll all 6s when rolling to hit, to wound and armour saves until the start of the caster's next Magic phase. The Wizard can instead choose to have this spell target all enemy units within 12". If he does so, the casting value is 20+. [/s]