Fissure

You rend the earth asunder in a 60-foot long, 5-foot wide line, targeting an area of dirt, sand, or rock at least 10 feet deep.

Each creature within that line must make a Dexterity saving throw. On a failure, a creature falls into the crevice, which snaps shut and begins to crush it. The creature takes 6d10 bludgeoning damage and is buried in 10 feet of rubble. A creature without a burrowing speed can spend 25 feet of movement to dig itself out, reappearing at the location it stood before the spell. A creature that ends its turn buried takes an additional 1d10 bludgeoning damage.