As an action, mummified hands drag a creature that you can touch or see within 18 meters down into a pit of sand. The creature must succeed on a Reflex saving throw or be dragged below the surface into an extradimensional space filled entirely with sand.
While entombed by this spell, the target is blinded, restrained, and starts to suffocate, taking 9d6 bludgeoning damage at the start of each of its turns.
An entombed creature can use its action to make a Reflex saving throw against your spell save DC.
On a successful save, the the effect ends and the target returns to the space it previously occupied, or the nearest unoccupied space.
You can increase the damage by 4d6 for each additional mana or psi expended.