Pillar of Earth

You cause a pillar of stone, crystal, or petrified wood to burst from a 5-foot square on a surface that you can see within range (such as the ground, a wall, or a ceiling). You can make the pillar extend up to 30 feet away from the targeted surface, and you can target a surface under a creature or object if it is Medium or smaller. If the pillar is created under a creature, that creature can choose to make a Dexterity saving throw. On a successful save, the creature is pushed to the nearest unoccupied space next to the pillar. As a bonus action, you can touch the pillar to cause it to extend or retract by up to 30 feet (to a maximum of 120 feet). If the pillar is prevented from extending because of a wall, ceiling, or other obstacle, the pillar stops short of the obstacle, and if there is a Medium creature at the end of the pillar, it is considered to be squeezing between the pillar and the obstacle. The pillar has ample handholds (such as small rocks, grooves, or branches), allowing creatures to climb or crawl along it without needing to make an ability check. The pillar has AC 15 and 30 hit points, and it is immune to poison and psychic damage. If the pillar is reduced to 0 hit points, the spell ends early. When the spell ends, the pillar retracts back to its original surface, along with any creatures on it, and then vanishes.