Remains in play. This may be cast on an enemy unit within 24". Each model, including characters and unit champions, takes a Strength 3 hit immediately. If the spell is still in play at the start of the caster's next Magic phase, each model in the unit takes a Strength 4 hit. If still in play at the start of the caster's following Magic phase, each model takes a Strength 5 hit, and so on, with the Strength increasing by 1 each turn it remains in play. The spell lasts until dispelled, the Mage chooses to end it (which he can do at any time), attempts to cast another spell or is slain.