Bull's Strength, Mass

This spell functions like bull's strength, except that it affects all allies in a 30-foot radius of the caster. Bull's Strength: The subject becomes stronger. The spell grants a +4 enhancement bonus to Strength, adding the usual benefits to melee attack rolls, melee damage rolls, and other uses of the Strength modifier. Enhancement bonuses do not stack with other enhancement bonuses, for example with bonuses from belts.