Armor Soft - Slipper oil that has a mild corrosive effect on most metals, detremental if used long term. However in the short-term it has the benefit of easier movement and less noise. Any suit of metal armor treated with armor soft has its armor check penalty reduced reduced by one and arcane spell failure by 5% for one hour. Each application of armor soft causes a cumulative 5% chance of the armor failing. The check is made after the duration has expired. Any armor that fails as a result of armor soft's corrosive effect is rendered useless.