Animated Blademaster.

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.

Animated swords. the Animated blademaster can choose to animate his swords. once it does so he can't use his longsword attack until he calls the swords back to his hand.

Multiattack. The armor makes two Longsword attacks or two Slam attacks

Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

Longsword. Melee Weapon attack: +4 to hit, reach 10 ft., one target. Hit: 5 (1d8+1) slashing damage