Increase one ability score by 1 and a different ability score by 2 

You are a Construct. You don't need to eat, drink sleep or breathe. Instead of sleeping you spend 8 hours doing non-strenuous activity to gain the benefits of a long rest.

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

You have no eyes, and are blind (and therefore immune to the Blinded condition). You have blindsight 60 ft.

You are unable to speak, but are still able to read and understand any languages which you know. You are unable to perform verbal spell components.

You are immune to the deafened, exhaustion, paralyzed, and petrified conditions.

While motionless you are indistinguishable from a normal longsword

You are immune to poison damage, and immune to the poisoned condition and disease 

You can read and understand Common 

You are a Natural Weapon. You deal 1d10 slashing damage when you successfully hit someone.

While you are not wearing armour you have a +5 bonus to your AC

You are unable to use armour or use shields. You are proficient with longswords because you are one.

You are unable to wield weapons or wear shields, and cannot use items which require manipulation, including spellcasting foci, wands, tools, etc.