Flashflood

School: Conjuration
Sub-School: Creation
Descriptor: Water
Ritual: No
Level: Divine & Primal 8th
Components: Material, Somatic & Verbal
Casting Time: Standard
Range: Personal
Effect/Target: 90ft long, 10ft tall Cone Spread, see text
Duration: 1 Round, see text
Saving Throw: See Text
All creatures in the affected area suffer the following effects:

• Speed is reduced to 0.
• Cannot make Attack rolls.
• Concentration checks must beat a DC of 30.

Additionally, each creature must make a Strength saving throw or take 4d6 Non-Lethal damage, and be knocked back to the end of the cone.
A successful save negates the knockback, and halves the damage taken.
The knockback occurs at the end of the creature's next Turn, and deals 8d6 Bludgeoning damage, if they hit a solid surface.
However, each creature may attempt to negate the knockback effect on their Turn, as follows:

• Spend a Move action to perform a DC 20 Strength check, if the creature is already holding onto a solid surface.
• Spend a Move action to perform a DC 20 Dexterity check, if the creature can grab onto a solid surface next to them.
• Spend a Move action to perform a DC 20 Strength check, if the creature is Huge or larger.
• Spend an appropriate action to escape the area, if the creature has the ability to do so, and succeeds any imposed Concentration check.

If a creature fails any of the above checks, they are also knocked Prone after the knockback.

After 1 Round has passed, 100.000cu. ft., or 800 5ft Cubes of water disperses as normal.
Unless the affected area has been cleared, the water is full of debris, dirt, and possibly corpses.
This affects different areas, as follows:
Cave, Cavern, or Tunnel:
Support beams are knocked down and the area starts filling up with water.
If the area is insufficient to support the volume of water, it rises until it may disperse freely.
Any creature caught submerged may start to Drown.
Cliffs:
At the base of the cliff, the water disperses throughout the area.
At the top of the cliff, the water likely flows over the edge, depending on the angle of the terrain.
Open Ground:
Creatures caught by the flood must make a Strength saving throw or be knocked Prone, and be swept 100ft away.
A successful save negates both effects.
Structures:
Any structure caught in the flood takes 60 damage.
This damage is affected by Resilience, but is not halved as normal for objects.
Any creature caught inside a collapsing structure must make a Strength or Dexterity save or take 8d6 Crushing damage.
The debris is then carried off by the flood.
River, Lake, or Marsh:
If the area is less than 40.000sq. ft., the water level rises and may cause slight damage or troubles for the surrounding area.
Material Component: Radiant Flowing Vaaryte with a value of 1.000g