Constructed Nature. An animated object doesn't require air, food, drink, or sleep.
The magic that animates an object is dispelled when the construct drops to 0 hit points. An animated object reduced to 0 hit points becomes inanimate and is too damaged to be of much use or value to anyone.
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 or uses Shocking Bolt twice.
Greatsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:10 (2d6 + 3) slashing damage plus 3 (1d6) lightning damage.
Shocking Bolt. Ranged Spell Attack: +4 to hit (with advantage on the attack roll if the target is wearing armor made of metal), range 60 ft., one target. Hit:10 (3d6) lightning damage.
The armor that Strahd wore into battle when he was alive lives on today as a headless, animated suit of plate armor. The armor is painted burgundy and adorned with golden angelic motifs.