You have a +2 bonus to attack and damage rolls made with this magic katana. When you hit with an attack roll using this weapon, the target takes an additional 1d6 psychic damage if it isn't an aberration.

While attuned to this magic weapon, you sever your sight to open your third eye. You suffer from the Blinded condition, but gain 60 feet of blindsight in return.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Melee Weapon Attacks, Damage: Psychic, Blinded, Debuff, Combat, Versatile, Sap