Tempest

Tempest
Level9th Level Casting Time1 action RangeSight
AoECylinder (100m radius, 1500m high) DurationConcentration, up to 1 minute
SchoolStorm ComponentsV, S
ClassesBlack Mage, Geomancer

"The thunder roars, the winds howl, the rains call forth thy presence... O powers of storm, gather before me, and demonstrate thy judgment!"

The air around you begins to vibrate with an electric hum as you take control of the wind and water in the air to create an immense storm.

A churning storm cloud forms, centered on a point you can see and spreading to a radius of 100m. Lightning flashes in the area, thunder booms, and strong winds roar. Each creature under the cloud (no more than 1,500m beneath the cloud) when it appears must make a CON saving throw. On a failed save, a creature takes 2d6 SONIC damage and becomes

Deafened Deaf
for 5 minutes.

This initial crack of thunder counts as a severe distraction for the purposes of maintaining Concentration on spells.

Each round you maintain Concentration on this spell, the storm produces additional effects on your turn.

Round Effect
2 Acidic rain falls from the cloud. Each creature and object under the cloud takes 1d6 ACID damage. This effect continues for the rest of the spell's duration.
3 You call six bolts of lightning from the cloud to strike six creatures or objects of your choice beneath the cloud. A given creature or object can't be struck by more than one bolt. A struck creature must make a DEX saving throw. The creature takes 10d6 LIGHTNING damage on a failed save, or half as much damage on a successful one.

This effect repeats on Round 5, 7, 9, and 10.

4 Hailstones rain down from the cloud. Each creature under the cloud takes 2d6 ICE damage. This effect continues for the rest of the spell's duration.
5-10 Gusts and freezing rain assail the area under the cloud. the area becomes difficult terrain and is Heavily Obscured. Each creature there takes 1d6 WIND damage. Ranged weapon attacks in the area are impossible. The wind and rain count as a severe distraction for the purposes of maintaining Concentration on spells. Finally, gusts of gale-force wind (ranging from 50 to 90kmh-1) automatically disperse fog, mists, and similar phenomena in the area whether mundane or magickal.