Kaito's Sword of Life Stealing

Weapon

Rare Requires Attunement

You have a +1 bonus to attack and damage rolls made with this magic weapon. When you attack a creature with this magic weapon and roll a 20 on the attack roll, that target takes an extra 3d6 3d6 necrotic damage, provided that the target isn’t a construct or an undead. You gain temporary hit points equal to the extra damage dealt.

A black, almost evil-looking katana made by the blacksmith, Kaito, in Katsuragama. You were given this sword as a reward for finding and returning Kaito's medallion to him.