Celestial Tempest
Tier 3 Epic evocation
Casting Time: 1 action
Range: 100 miles
Components: V, S, M (a holy book sanctified by a deity)
Duration: Concentration, up to 10 minutes
The heavens roil with divine energy as storm clouds appear in the shape of a cylinder that is 1,000 feet tall and 1 mile in diameter, centered on a point within range that is at least 10,000 feet directly above you. The spell fails if you can’t see a point in the air where the clouds could appear. When the spell is cast, each creature in or beneath the spell’s area senses the overwhelming divine power you wield and may offer a prayer (no action required) to beg for mercy. You become aware of any creatures who offer a prayer in this manner and may use this knowledge to spare them from the spell’s effects. The spell causes the following effects to occur over the course of its duration.
Breath of the Gods. Hurricane-force winds batter both the area of the spell and the area beneath the stormfront, tearing rooftops off buildings and blowing away anything not tied down. At the start of your turn, all objects in the area take 5 bludgeoning damage. Creatures of your choice that are exposed to these winds have Epic disadvantage on ranged attack rolls.
Pronounce Judgement. As a bonus action on each of your turns, you may call down up to three bolts of divine wrath from the stormfront to three separate points in or beneath the spell’s area. Each creature within 10 feet of one of these points must attempt a Dexterity saving throw. A creature takes 5d10 righteous or vile damage (your choice) and 5d10 lightning damage on a failure, or half as much on a success. A creature cannot take damage from this effect more than once per turn.
Rain of Destruction. Smiting force drives down in waves as though it were rain. At the start of your turn, creatures of your choice in and beneath the spell’s area take 4d6 radiant or 4d6 necrotic damage (your choice).
Ref: ELCR p92