Autognome

Whenever the autognome takes 15 damage or more from a single source and isn't reduced to 0 hit points by that damage, roll a d20 to determine if it suffers a malfunction:

• 1-10: "All Fine Here!".

  No malfunction occurs.

• 11-12: "My Mind Is Going. I Can Feel It.".

  The autognome is incapacitated for 1 minute.

• 13-14: "You've Disarmed Me!".

  One of the autognome's arms falls off, reducing the number of Shock attacks it can make by 1 until a creature uses an action to reattach the arm.

• 15-16: "Who Turned Out the Lights?".

  The autognome's head falls off and deactivates, causing the autognome to be blinded and deafened until a creature uses an action to reattach the head, which reactivates it.

• 17-20: "Have a Magical Day!".

  The autognome explodes and is destroyed. Each creature within 20 feet of the exploding autognome must make a DC 11 Dexterity saving throw, taking 22 (4d10) slashing damage on a failed save, or half as much damage on a successful one.

• Unusual Nature.

  The autognome doesn't require air, food, drink, or sleep.

The autognome makes two Shock attacks.

Melee or Ranged Weapon Attack: +3 to hit, reach 5 ft. or range 60 ft., one target. Hit: 7 (2d6) lightning damage.