You rend asunder the earth in a 60-foot-long 5-foot-wide line, targeting an area of dirt, sand, or rock at least 10 feet deep.   Creatures in that line must make a Dexterity saving throw. On a failure, a creature falls into a suddenly opened crevice in the ground, falling into it before it snaps shut, crushing them. Creatures that fail the saving throw take 6d10 bludgeoning damage from the fall and crushing. The creature is buried in 10 feet of rubble, and creatures without a burrowing speed require 25 feet of movement to extract themselves from the loose rubble to return to where they failed the saving throw.   If they end their turn while buried, they take an additional 1d10 bludgeoning damage.