Cassies Nightcrawler Swarm

You call forth a Large swarm of semi-spectral fleshy creatures known as Fresno nightcrawlers which resemble pairs of running legs. The swarm springs into existence in an unoccupied 5 foot space on the ground within range. The swarm of nightcrawlers has AC 10, 25 hit points, damage resistance to bludgeoning, piercing, and slashing damage, and immunity to the charmed, frightened, grappled, paralyzed, petrified, prone, and restrained conditions. The swarm can occupy the same space as other creatures and vice versa and it can't regain hit points or gain temporary hit points. If the swarm drops to O hit points, the spellends. Once on each of your turns as a bonus action you can mentally command the swarm to move up to 60 feet. Any Medium or smaller creature, or Medium or smaller object that is not being worn or catried, in the space the swarm moves through must make a Strength saving throw against your spell save DC or be carried along with the swarm, falling prone in a space the swarm occupies at the end of the swarm's movement. A creature that starts its turn in the swarm's space must also make a Strength saving throw against your spell save DC or be swept up by the swarm (or continue to be carried by it). When cast at higher levels the size of the swarm increases occupying an additional 5 foot space per spell level.