Swallow

Choose a creature you can see within range. The target must succeed on a Dexterity saving throw or be swallowed as a giant snake head erupts from the ground underneath the target. While in the mouth of the snake, the target takes 2d6 acid damage. While swallowed in this way, the target is incapacitated. Roll 7d10. The amount of hit points the snake has is equal to the total rolled. When the snake reaches 0 hit points, the spell ends and the target is released.