Antimagic Susceptibility. The knife is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the knife must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.
False Appearance. While the knife remains motionless and isn't flying, it is indistinguishable from a normal knife.
Longknife. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:5 (1d8 + 1) slashing damage.
Dagger. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:3 (1d4 + 1) piercing damage.