Clockwork Queen

Immutable Form. The Clockwork Bishop is immune to any spell or effect that would alter its form.

Magic Resistance. The Clockwork Bishop has advantage on saving throws against spells and other magical effects.

Unnatural Armor.  Their thick metal surface gives them a starting AC of 12 + their Dexterity modifier.

Multiattack. The Clockwork Queen makes up to two ranged attacks and up to a total of three attacks.

Rapier. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) piercing damage.

Light Rifle. Ranged Weapon Attack: +8 to hit, range 60 ft./200 ft., one target. Hit: 10 (1d10 + 5) piercing damage.

Spider Drones(5/Day).  The Clockwork Queen produces 5 Spider Drones per day.  Each Spider Drone has 2 (1d4) hit points and can heal (1d4) another clockwork creation.  Any number of drones can be transfer at once.  The spider expends itself by repairing a clockwork creation and cannot be recovered.  

Overdrive (1/Day)(Bonus Action). The Clockwork Rook's gears spin faster and increases its movement and reaction time for a single round.  Movement increases by 20 ft and AC increases by 2.

Drone Rescue.  If the Clockwork Bishop drops to zero hit points and not all Spider Drones have been expended, then the remaining Drones will immediately use themselves and the Queen will recover hit points equal to the number of Drones.  

Parry. The Clockwork Queen adds 2 to its AC against one melee attack that would hit it. To do so, the Queen must see the attacker and be wielding a melee weapon.