Wind Razor

Antimagic Susceptibility. The razor is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the razor must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.

False Appearance. While the razor remains motionless and isn't flying, it is indistinguishable from a normal knife.

Multiattack. The razor makes two razorblade attacks, then a third razorblade attack with disadvantage.

Razorblade. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:  (1d4 + 6) slashing damage.

Wind Dance. The razorblade surrounds itself in a barrier of wind. When the barrier appears, any creature within 5 ft of the razor must make a Strength saving throw. A creature takes 4 (1d8) bludgoning damage on a failed save, or half as much damage on a successful one. The wind keeps fog, smoke, and other gases at bay. Tiny flying creatures or objects can't pass through the barrier. Loose, lightweight materials brought into the wall fly upward. Arrows, bolts, and other ordinary projectiles launched at targets behind the wall aremade with disadvantage, deflecting upward on a miss. (Boulders hurled by giants or siege engines, and similar projectiles, are unaffected.) Creatures in gaseous form form can't pass through it.