Fire Storm

Caster Level(s): Cleric 8, Druid 7
Innate Level: 7
School: Evocation
Descriptor(s): Fire
Component(s): Verbal, Somatic
Range: Personal
Area of Effect/Target: Colossal
Duration: Instant
Additional Counter Spells:
Save: Reflex 1/2
Spell Resistance: Yes
Spell Component: A Holy Symbol which must be worn

Everyone within this spell's area of effect are inundated with a rain of fire and take 1d6 points of damage per caster level up to level 20 plus an additional 1d6 points of damage per 2 caster levels thereafter. Half of the damage is divine and the other half is fire-based.