Mechanized Autonomous Construct

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

When it rolls initiative, the construct adopts one of two different modes of operation, Offensive or Defensive, which influences the actions it can take in combat.

While in this mode, attacks against the construct have advantage. The construct can take the Attack (melee weapon attacks only), Dash, Ready, and Use an Object actions on its turn.

While in this mode, melee attacks against the construct's creator have disadvantage while the attacker is within the construct's reach. The construct can take the Dash, Disengage, Dodge, Help, Hide, and Use an Object actions on its turn.

Melee Weapon Attack: its creator's Intelligence modifier + its proficiency bonus to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

The construct launches itself up to 30 feet in any direction, without provoking opportunity attacks.