The character calls unholy power to smite the character's enemies. The power takes the form of a cold, cloying cloud of greasy darkness. Only good and neutral (not evil) creatures are harmed by the spell.
The spell deals 1d8 points of damage per two caster levels (maximum 5d8) to good creatures and sickens them for 1d4 rounds. A sickened creature suffers a –2 penalty on attack rolls, weapon damage rolls, saves, skill checks, and ability checks. A successful Fortitude save reduces damage to half and negates the sickening effect.
The spell deals only half damage to creatures who are neither evil nor good, and they are not sickened. They can reduce the damage in half again (down to one-quarter of the roll) with a successful Reflex save.