Dispel Evil

The cleric using this spell causes summoned creatures of Evil nature, or monsters enchanted and caused to perform evil deeds, to return to their own plane or place. 

Examples of such creatures are: aerial servants, demons, devils, djinn, efreet, elementals, and invisible stalkers. 

Note that this spell lasts for 1 melee round for each level of experience of the caster, and while the spell is in effect all creatures which could be affected by it attack at a -7 penalty on their "to hit" dice when engaging the spell caster. 

The reverse of the spell, dispel good, functions against summoned or enchanted creatures of good alignment or sent to aid the cause of Good. 

The material components for this spell are the cleric's religious object and holy/unholy water.