OG Armos (5e Creature)
From D&D Wiki
Medium construct, unaligned
Construct Nature This creature is immune to all mental affects and doesn't require.
Trident Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.
Armos are magical statues programmed to attack ceartin intruders. Orange Armos are Lawful Neutral, and attack those not programmed on to. Green Armos are unaligned, attacking all those it sees. White Armos are Lawful Good, attacking those it deems evil.