Oxen Strength

This spell temporarily increases the druid's Strength ability score by +1 per level the druid possesses (to a maximum of 18/00). Every 10% increment on the Exceptional Strength chart is considered a point of Strength. The druid gains an innate toughness that prevents muscle strain or physical injury from exertion and also an unarmored Armor Class of 8, the equivalent of toughened leather.

The material component is a bit of hair from a strong herbivore, such as an ox or buffalo.