Repulse Metal

By manipulating unseen forces, the wizard creates waves of magical force that impel all metal within the area of effect and not solidly anchored to move away from the caster at the rate of 30 feet per round. The spell also affects nonferrous metals like gold and lead. Metal objects on the wizard's person are not affected.

The force ceases 100 feet from the caster, so a sword 99 feet away is pushed only 1 foot before it stops moving. The wizard can change the direction of the force at the beginning of each round simply by pointing, or can keep the force focused in one direction from round to round if he prefers. Metal-tipped missiles and hurled weapons are repelled automatically if the spell is directed at the missile-firing characters or creatures.

The repulsive force is proportionate to the amount of metal present. A character carrying or wearing more than one pound of metal must make a successful saving throw vs. spell even to hold his position, and succeed by a margin of 4 or more in order to advance towards the caster. (Such an advance is adjudicated by the DM, a maximum possible movement of 30 feet is suggested.) The character suffers a -1 penalty to the saving throw for every 10 pounds of metal carried (round up), so a warrior in 75 pounds of plate mail would suffer a -8 to his saving throw.