D&Dtools1

ft./level)
Effect: 40-ft.-radius spread
Duration: Instantaneous
Saving Throw: Reflex half; see text
Spell Resistance: No
You create a landslide of mud and water, which crushes, buries, and mires those caught in its path.
The mud covers the area of the spell to a depth of about 10 feet (although it might fill low-lying areas or fail to cover high points in the area, at the DM's discretion).
Creatures within the spell's effect must make a Reflex save.
Those who fail take 8d6 points of damage and are buried (see Avalanches on page 90 of the Dungeon Master's Guide).
Those who succeed take 3d6 points of damage and are not buried.
Creatures of the fire subtype who are actually aflame (such as salamanders, azers, and fire elementals) instead take 8d8 or 3d8 points of damage, respectively.
A creature who escapes burial ends up on top of the mudslide, mired in deep mud.
After the initial slide, the mudslide persists indefinitely, producing an area of deep bog (average depth 10 feet) until the water in it evaporates.
It requires 4 squares of movement to enter 1 square of deep bog, and running or charging are impossible in the area.
Underwater, the mudslide remains indefinitely, producing an area of deep muck.
It costs 2 squares of movement to enter a square containing deep muck, the DC of Balance and Tumble checks increases by 5, and the DC of Move Silently checks increases by 2.
Aboveground, the mud normally dries out in 2 to 3 days.
A transmute mud to rock spell hardens the slide into stone, trapping any creatures still within.