Primal Regression

This spell sequesters the targets' ability for higher reasoning, allowing their darker impulses to come to the fore. An affected target becomes a ravening monster — savage, bloodthirsty, and brutish. Until the spell ends, the targets have all of the following benefits and drawbacks: The targets' Intelligence and Charisma scores drop to 1, and they are unable to cast spells. The targets take a –4 penalty on Will saves. The targets gain a +6 enhancement bonus to Strength, a +2 natural armor bonus to AC, and 2d8 temporary hit points. These temporary hit points disappear at the end of the spell's duration. When the spell ends, on the next round each affected creature must succeed at a Will saving throw or take 1d4 points of Intelligence drain and 1d4 points of Charisma damage.