Automaton Type-BX “Executioner”

Tactical Processor. The BX has advantage on attack rolls if at least one ally construct is within 5 feet of the target and not incapacitated.

Shadow of Law. While in dim light or darkness, the BX can take the Hide action as a bonus action. It has advantage on Dexterity (Stealth) checks made to hide in structured or geometric environments (such as Mechanus).

Precision Execution. When the BX hits a creature that is surprised or hasn’t taken its turn yet, the attack deals an extra 21 (6d6) damage.

Discipline Network. Up to 3 allied constructs within 30 ft. can add +2 to their AC until the start of the BX’s next turn when it uses the Dodge or Hide action.

Multiattack. The BX makes three attacks with its Execution Blade or Arcane Blaster, or a mix of both.

Execution Blade. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 5) Slashing damage plus 10 (3d6) Radiant damage. On a critical hit, the target must succeed on a DC 15 Con save or be restrained by glowing order chains until the end of its next turn.

Arcane Blaster. Ranged Weapon Attack: +9 to hit, range 60/240 ft., one target. Hit: 14 (3d8 + 5) Radiant damage.

Harmonic Disruptor (Recharge 5–6). The BX emits a focused pulse of lawful energy. All creatures of its choice within 15 feet must make a DC 16 Wisdom saving throw or take 21 (6d6) Thunder damage and be stunned until the end of their next turn on a failed save, or half as much damage on a success.

Calculated Step. The BX can move up to half its speed without provoking opportunity attacks.

Parry. The BX adds 3 to its AC against one melee attack that would hit it. To do so, the BX must see the attacker and be wielding a melee weapon.

Coordinated Strike. If an ally construct within 30 feet hits a creature with an attack, the BX can use its reaction to make one weapon attack against the same target.