Clockwork Utility Drone

Remote Control. While the drone and a trained pilot with the proper command word are on the same plane of existence, the pilot can communicate with the drone telepathically and perceive through the drone's senses. It can use this telepathic link to issue commands to the drone while doing so (no actions required), or use it's action to take total and precise control of it on a turn.

Magic Resistance. The drone has Advantage on saving throws against spells and other magical effects.

Repairable. The drone regains 2 (1d4) Hit Points if the Mending spell is cast on it and it has at least 1 Hit Point.

Flyby. The drone doesn't provoke an Opportunity Attack when it flies out of an enemy's reach.

Immutable Form. The drone can't shapeshift.

Spellcasting. The drone casts one of the following spells, using Constitution as the spellcasting ability (spell save DC 11, +3 to hit with spell attacks) and requiring no components :

At will : Dancing Lights*, Detect Magic*, Mage Hand* (can lift up to 50 pounds), Mending

1/day each : Locate Object*, Sending

* Concentration spells

Zap. Melee or Ranged Spell Attack : +3 to hit, reach 5 ft. or range 30 ft., 1 target. Hit : 3 (1d4 + 1) Lightning damage. If the drone reduces a creature to 0 Hit Points this way, it can choose to make it fall Unconscious for 1d4 Hours instead with 1 Hit Point remaining.

Force Bolas. Dexterity Saving Throw, DC 11, one Medium or smaller creature the drone can see within 15 feet, Failure : The target has the Grappled condition (escape DC 11) for up to 1 minute, and the Restrained condition until the grapple ends.

Shield Projection. Trigger : An object, the drone, or another Large or Medium creature it can see within 15 feet is Hit by an attack roll. Response : The drone adds 2 to its AC against that attack, possibly causing it to miss. If the attack still hits and the target is a creature that would be reduced to 0 Hit Points, it instead falls Unconscious for 1d4 Hours with 1 Hit Point remaining.