This spell creates an enormous black storm cloud. Lightning
and crashing claps of thunder appear within the storm. Creatures
beneath the cloud must succeed at Fortitude saves or be deafened
(see blindness/deafness) for 1d4x10 minutes.
If the character does not maintain concentration on the spell
after casting it, the spell ends. If the character continues to
concentrate, the spell generates additional effects in each
following round, as noted below. Each effect occurs during the
Second Round: Acid rains down in the area, dealing 1d6 points
of acid damage. No save is allowed.
Third Round: The character calls six bolts of lightning down
from the cloud. The character decides where the bolts strike. All
may be directed at a single target, or they may be directed at up
to six separate targets. Each bolt deals 10d6 points of
electricity damage. Creatures struck can attempt Reflex saves for
Fourth Round: Hailstones rain down in the area, dealing 5d6
points of damage (no save).
Fifth through Tenth Rounds: Violent rain and wind gusts reduce
visibility. The rain obscures all sight, including darkvision,
beyond 5 feet. A creature 5 feet away has one-half concealment
(attacks suffer a 20% miss chance). Creatures farther away have
total concealment (50% miss chance, and the attacker cannot use
sight to locate the target). Speed is reduced by three-quarters.
Ranged attacks within the area of the storm are impossible.
Spells cast within the area are disrupted unless the caster
succeeds at a Concentration check against a DC equal to the storm
of vengeances save + the level of the spell the caster is
trying to cast.