Bottomless Pit

Hold the worm in the palm of one hand while you trace a circle in the air with the other and focus on the point you wish to become a bottomless pit. At the point that you are concentrating on, you can create a pit of up to 10 feet in diameter. If the point you choose is underneath a creature, it must make a Dexterity saving throw. On a successful save, the creature manages to cling onto the edge of the pit. On a failed save, the creature falls into the pit and is doomed to keep falling forever, unless it is summoned elsewhere.

At higher levels: For each spell level above 3rd, the possible diameter of the pit increases by five feet.