5e SRD:Animated Armor
From D&D Wiki
|This material is published under the OGL|
Medium construct, unaligned
Damage Immunities poison, psychic
Antimagic Susceptibility. The armor is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the armor must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.
False Appearance. While the armor remains motionless, it is indistinguishable from a normal suit of armor.
Multiattack. The armor makes two melee attacks.
Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.
This empty steel shell clamors as it moves, heavy plates banging and grinding against one another like the vengeful spirit of a fallen knight. Ponderous but persistent, this magical guardian is almost always a suit of plate armor.