This spell has a range of 12" and can be cast on an enemy unit which is visible to the caster. If successfully cast, the enemy's weapons begin to crumble and rust away. No weapon bonuses or penalties apply to the affected unit for the remainder of the battle. For example, a unit wielding Great Swords will not get their +2 Strength bonus in combat for the rest of the battle, but will now not have to strike last. A unit with missile weapons may not shoot for the duration of the entire battle. Affected units are assumed to use their fist/claws, etc, and so cannot benefit from the rules for using two hand weapons or a hand weapon and shield. War machines and magic weapons cannot be affected by the Bane of Forged Steel - only ordinary weaponry carried by troops.