Augmented Pentadrone Assassin

Learning Algorithm: If a creature uses the same attack it used on its previous turn, the pentadrone can use its reaction to gain +3 temporary AC that last for 1d8 + 2 turns

Multiattack. The Pentadrone makes four melee attacks.

Slash. Melee Weapon Attack: +2 to hit, reach 5 ft, 1 target. Hit: 8 (1d8 + 4) slashing damage.

Spike. Melee Weapon Attack: +2 to hit, reach 5 ft,1 target. Hit: 9 (1d6 + 6) piercing damage. 

Silent Laser. Ranged Weapon Attack: +4 to hit, range 15/50 ft, 1 target. Hit: 13 (3d6 + 4) force damage.

Multi Laser. Ranged Weapon Attack: +4 to hit, range 15/25 ft, 3 targets. Hit: 10 (2d6 + 4) force damage.

Sniper Laser. Ranged Weapon Attack: +4 to hit, range 50/250 ft, 1 target. Hit: 19 (3d10 + 4) force damage.

Energy Steal. As a reaction the pentadrone can steal the kinetic energy of a projectile flying within 5 feet of it, the projectile does 1d8 less damage. and the drone's HP increases by that same amount.