Buried Alive

You send your enemies to their graves even if they aren’t dead yet. A creature that you can see within range that is standing on the ground must make a Strength saving throw. On a failed save, the ground opens and swallows the target, burying it up to 10 feet deep. While buried, the target has Total Cover, has the Restrained and Blinded conditions, and can’t breathe. On a successful save, the target has the Prone condition, and its Speed is 0 until the end of its next turn. A buried creature can dig out of the grave by using its action to make a DC 15 Strength (Athletics) check. On a success, it digs 5 feet closer to the surface. If it succeeds by 5 or more, it reaches the surface. When the creature reaches the surface, it exits the ground with the Prone condition.

The target automatically succeeds on its saving throw if it’s standing on any thickness of stone or metal, or at least 2 inches of wood.