Tomb

You forcefully hollow out a 5-foot cube of the earth underneath a target creature of Medium size or smaller. The creature must make a Dexterity saving throw or fall into the hollowed-out earth. On a failed save the creature becomes heavily obscured as the earth covers the creature, and is considered restrained and unable to breathe. On each of the creatures turns, it may use its action to make a Strength (Athletics) check against your spell save DC to try and dig its way out of the tomb.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the area of effect increases to a 10 feet cube and you may target a creature that is Large or smaller.